ProIsoCharge Series ModelProIsoCharge120 1•2 Part No. 23121 System Volts DC 12 Max DC Amps 120 Amp Alternator Input1 Battery Outputs 2 Size 5.35"(l) x 5.875"(w) x 3.125"(h) Weight2 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge120 1•3 Part No. 23124 System Volts DC 12 Max DC Amps 120 Amp Alternator Input1 Battery Outputs 3 Size 6.15"(l) x 5.875"(w) x 3.125"(h) Weight3 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge250 1•3 Part No. 23123 System Volts DC 12 Max DC Amps 250 Amp Alternator Input1 Battery Outputs 2 Size 6.95"(l) x 5.875"(w) x 3.125"(h) Weight4 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge180 1•2 Part No. 23122 System Volts DC 12 Max DC Amps 180 Amp Alternator Input1 Battery Outputs 2 Size 6.15"(l) x 5.875"(w) x 3.125"(h) Weight3 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge180 1•3 Part No. 23125 System Volts DC 12 Max DC Amps 180 Amp Alternator Input1 Battery Outputs 3 Size 7.55"(l) x 5.875"(w) x 3.125"(h) Weight5 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge250 1•3 Part No. 23126 System Volts DC 12 Max DC Amps 250 Amp Alternator Input1 Battery Outputs 3 Size 8.875"(l) x 5.875"(w) x 3.125"(h) Weight6 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

ProIsoCharge Series Model ProIsoCharge130 2•4 Part No. 23127 System Volts DC 12 Max DC Amps 130 Amp Alternator Input2 Battery Outputs 4 Size12.05"(l) x 5.875"(w) x 3.125"(h) Weight7 lbs Significantly Smarter... ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating. Intelligent Alternator Power Distribution System ProMar Digital Performance Zero Volt Loss Isolation and Charging All digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators. Intelligent Isolation and Charging Software Control ProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries. Real Time LED Status Indicators Highly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc). Ignition Controlled Distributed On Demand™ battery bank management will only activatewith ignition power on. Advance Regulator Ready Advance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator. Easy Installation Modular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover. Built-in Safety Ignition protected and waterproof to IP66. FIVE YEAR WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

PROMARINER 1 ALTERNATOR 2 BATTERY ISOLATOR 130 AMP       Promariner Battery Isolator, Manufacturers part number 1-130-2   ProMariner Battery Isolator, with gold-plated terminals and improved efficiency, provide enhanced charging.    Max Current: 130 Amp Configuration: 1 alt., 2 batt.     Enter Discount Code 11302    

Battery Isolators

Gianneschi PM40 12V 1"BARBS Diaphragm Pump 12V 40Lpm 1"

March 809 BR 12VDC Applications for the 809-BR 12V & 24V Magnetic Drive Pump include hot water systems, refrigeration systems and solar heating.   March Pump's industrial 809-BR 12V & 24V is an American seal-less centrifugal magnetic drive pump ideal for applications such as hot water systems. It is capable of generating a maximum flow of 5 gallons per minute at 1.5 feet, and its maximum head is 7 Feet (or around 3PSI). The standard wet end (the materials that come into contact with the solution) is composed of Bronze, Stainless Steel, Teflon, Silicone and Ryton/Teflon/Glass. The inlet connection is 0.5 male pipe thread, and the outlet is 0.5 inch male pipe thread. The standard motor is a 0.01 Horsepower DC Brush Type Motor, available in 12 or 24 Volts.  The 12 Volt motor has an operating range from 0 to 14 Volts, and the 24 Volt motor has an operating range from 0 to 26 Volts. The maximum internal pressure the pump can tolerate is 150PSI, and the maximum liquid temperature is 250 Fahrenheit or 121 Celsius.   Max Flow 5 GPM 18.9 LPM Max Head 7.1 FT 2.1 M Power .01 HP .007 KW Electrical 12V Range 0-14 or 24V Range 0-26  

Vertical Battery Switch Cluster w/DVSR - 1 Engine/2 Batteries BEP Dual Battery Switches with Digital VSR and Emergency Parallel Dual Battery charging clusters For use on charging systems under 140Amps To be used in the following systems: Single outboard dual battery bank Single alternator inboard engine dual battery bank Dimensions: 276L X 69W x 75H mm (vertical) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Walbro FRC-8-2 Industrial 12V Fuel Pump 12Psi   Industrial Reciprocating Fuel Pump Genuine Walbro Part # FRC-8-2 12 Volt Up to 12 PSI    Voltage: 12 Volt (9.0 min - 16.0 vdc max) Minimum Flow Rate: 106 liters per hour (28 gph) Deadhead Pressure: 62 to 83 kPa (9.0 to 12.0 psi) Maximum Current Draw: 2.3 ampsLife: >8,000 hours Dry Lift: 48 inches Compatible Fuels: No-lead regular gasoline, premium gasoline, gasoline-alcohol blends, diesel and biodiesel fuels (20% and 100%), and E85 Corrosion Resistance: 96 hour salt spray test (ASTM B-117)Operating Temperature Range: -40ºF to 155ºF (-40ºC to 68.3ºC)   Electrical Reverse Voltage Protected Transient Voltage Protection Ground: Circuit Board is Internally Grounded to Pump Body Electrical Connector: Packard Electric (Accepts mating connector 12015782) Fuse: 5 amp recommended   Mechanical Inlet & Outlet Size: 1/8-27 NPSF Inlet Filter Screen: 70 micron Magnetic Trap Standard Outlet Check Valve: Yes 20 micron Filter Screen   The FRC series fuel pump is designed to supply fuel for internal combustion engine applications only. It is not intended or designed for continuous operation applications such as heater or stove systems.  

PT-7 Battery Charger Newmar’s Phase Three Series Battery Chargers employ “Smart” battery charging technology for 12-volt systems aboard marine applications including workboats, military vessels, commercial vessels, and recreational craft. This charger interacts with batteries, providing the optimum three-stage charge process for fast recovery and conditioning, maximizing performance, and extending battery life. A selector switch adjusts output voltage to adapt to gel-cell, flooded lead-acid, or AGM battery types. An optional temperature compensation sensor also adjusts output for ideal voltage based on changes in the batteries’ ambient temperature. This model is housed in a rugged stainless-steel case with a durable white powder coat finish, and the internal circuitry is polyurethane-coated for maximum corrosion resistance. Features: “Smart” circuitry provides three-stage charging – bulk, absorption, float Gel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages Multiple isolated output banks; ammeter indicates total output current. (Except PT-7) The optional sensor adjusts output voltage based on battery temperature. (Except PT-7) Current limiting prevents damage from overloading Clean well-regulated output can be used as a power supply; can power loads directly without a battery in line Built to last – rugged stainless-steel case with a durable white powder coat finish with an optional drip shield and marinized internal circuitry Protection: Current Limiting, Thermal Protection, Forced Air Cooling, Drip Shield ABS-type approval for battery charging and power supplies Specifications: Input VAC (50-60 Hz.): 88-132 or 176-264  Input Amps @ Full Load: @ 115 VAC 2, @ 230 VAC 1     P.F. Rating: >.65  Max Output Amps: 7 Output Banks: 2  Battery Capacity (Amp-Hours): 14-70 Operating Temp. Rating Reference: T-1 Case Size Reference: A-1 Case Size (H x W x D): 10.5 x 5.0 x 2.8 inches (26.7 x 12.7 x 7.1 centimeters) Weight Lbs./Kg: 3.2/1.5 Optional Temp. Sensor Model: N/A Remote Panel Model: N/A  Equalize Option: No Output Indicator Reference: M-1 Compliance Reference: CG, CE     Temperature Rating References: Temperature: -10 degrees C to +45 degrees C     Derate Linearly From 100% @ 0 degrees C to 80% @ -10 degrees C Nominal Output Voltages at Gel/Flooded Switch Settings (without Temperature Compensation): Gel-Cell: 14.0 VDC Charge @ 50% load and 13.6 VDC Float @ .5 amp load Flooded/AGM: 14.2 VDC Charge @ 50% load and 13.4 VDC Float @ .5 amp load Compliance References: CG: USCG CFR 183.410 (Ignition protected) CE: Carries the CE mark ABS: PT Series meet SVR 2009 4-8-3/5.9, Under 90 meters Rules 2006 4-6-4/7.19, and HSNC 2007 4-8-3/5.13 This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Walbro FRB-13-2 Fuel Pump 6-8 Psi 12V Pressure: 6.0 - 8.0 psi Service Life: 18,000+ hr Magnetic Trap: Yes Minimum Flow Rate: 43 gph Dry Lift: 48" Current Draw: 2.3 Amp Inlet/Outlet: 1/4-18 NPSF Fuse: 5A Inlet Filter Screen: 70 Micron Weight: 1.83 lb Voltage: 12V DC Outlet Check Valve: None   The FRB is an advanced electric fuel pump with internal circuitry allowing it to operate at a variable frequency. When turned on, it will cycle as long as there is a demand for fuel, but when fuel demand decreases, the pump slows down as it builds pressure in the fuel delivery line - until the pump's rated maximum pressure is reached, and the pump stops. These FRB pumps are especially suitable for applications where battery life, low noise, and best durability are important. Not recommended for applications such as heater or stove systems as output pressures are too high. For heater and stove fuel pumps, use the lower pressure Walbro FRD Series. See Related Products, below. The FRB is designed to serve as a primary pump (replacing a mechanical fuel pump) or as an auxilliary fuel pump (assisting the existing pump) for internal combustion engines. A common application is supplying fuel to the those diesel refrigeration units mounted high on tractor-trailer trucks. These pumps incorporate a new piston mechanism which, unlike rubber diaphragms, is not affected by modern, high-tech fuel blends. • Pump cycles only when fuel is demanded - so the pump cycles on and off • The non-adjustable maximum output pressure is factory pre-set in the ranges specified in the table, below • Continuous duty life (diesel fuel): >18,000 hours • Can run dry for up to 4 hours • Flow rates as high as 60 gph, but 30 gph is a more typical maximum • Compatible with all commercially available pump grade gasoline, gasoline-alcohol blends, diesel, and bio-diesel fuels • Self-priming to 4 feet • Current draw averages less than 2 amps • USCG 16623-1 and 16623-2 approved; ignition protected • Anodized, corrosion protection coating passes 1,000 hr salt spray test - suitable for marine applications • Replaceable internal 70 micron mesh filter • Magnetic trap for ferrous contaminants • Inlet (lower, side)/Outlet (top): 1/4-18 NPSF (Dryseal American National Standard Straight Pipe Thread) — will accept NPT tapered fittings without leaking, thread sealant recommended • Dimensions: 5.83"H x 2.76"Dia. • Note - a suffix number (typically -1 or -2) in part number refers to type of packaging • Made in USA NOTE — Although the included instructions indicate that FRB pumps are supplied with hose clamps, at this time (5/8/13), these pumps do not include any installation fittings. Technical Selecting among the Walbro FR Series electric fuel pumps: • All the FR electric pumps provide fuel until the fuel demand decreases, or flow is restricted - but they have different mechanisms for doing so. FR pumps will cycle (pump) until they build up the pressure (head) in the outflow line - with an accompanying decrease in fuel flow - and reach their factory preset maximum pressure. At this point, constant frequency pumps like the FRA will continue cycling - but no fuel will flow. Variable frequency pumps, like the FRB and FRD, will slow and eventually stop cycling as the pressure builds. If the pressure on the outflow side of the pump drops, both types of pump will start supplying fuel again. • Choosing an FR Series pump is often less dependent on the application, and more a matter of user preference: — FRA pumps are lower cost, basic models. They have no built-in filter, and their constant cycling means electric current draw is constant - regardless of output, they are always making noise, they typically have a shorter lifespan (higher wear), and they can wear unevenly as the stroke can be shortened when operating near their maximal pressure. — FRB and FRD pumps have a more expensive variable frequency circuit board, always use their full stroke length - so wear is evenly distributed, do not always operate at full capacity/maximal cycling — so less wear, longer life, less noise, and lower average current draw. Additionally, the FRB models include a built-in/replaceable 70 micron mesh filter, so the user doesn't need to supply a pre-filter.   • What the FR fuel pump is designed to do: — In carbureted applications - The FRA and FRB fuel pumps self-regulate to their maximum output pressure when the carburetor bowl is full, and respond to float movement in the carburetor as required. When the engine demands more fuel, the pump increases its flow rate. When the engine demand drops, the pump reduces its flow rate. — In diesel applications - The FRA and FRB pumps will deliver fuel to the diesel injector pump, assuring a positive pressure at the injector pump inlet. These pumps are designed to refill diesel filters after service or replacement. — In transfer applications, including fuel polishing, FRA and FRB pumps run continuously, as long as electrical power is supplied to the pump, and output back pressure is low. — In diesel heater and stove applications, the task-specific FRD pumps will slow their cycling rate to deliver only the fuel required by the stove fuel metering valve ("carburetor"). FRD pumps can also fill day tanks in gravity feed installations. • Complete list of approved fuels for FR pumps: — Unleaded regular gasoline, premium gasoline, gasoline-alcohol blends, diesel fuel, bio-diesel, Stoddard solvent, E85.