Bosworth 74-A Foot/Check Valve 1/2"F   Bosworth Foot Valve / Check Valve Sea-Lect Gray Delrin, Buna Flapper Valve, 1/2" Female Threads

Bosworth 75 Check Valve 1 1/2"   Bosworth- Foot Valve / Check Valve Sea-Lect Gray Delrin, Buna Flapper Valve, 1 1/2” Smooth Hose Ports

Bosworth 100-A Strainer Check Valve 1/2"F   Bosworth Strainer Check Valve, Buna Flapper Valve, 1/2" Female Threaded Port

Bosworth Bm-94-A Y-Valve 1/2" Int Thd   Bosworth Y-Valve Base Mount Sea-Lect Gray Delrin 1/2" Internal Threaded Ports

In-Line Check Valve - 1/2" Barbs This check valve allows water to flow in only one direction helping to safeguard against back surge pressure up to 100 PSI. Features: Allows flow in one direction only Safeguards against backsurge up to 100 PSI Small size, easy installation

Jabsco 30473-1000 Check Valve 1/2# Spring  

Bosworth 74-1 Foot/Check Valve 1"   Bosworth- Foot Valve / Check Valve Sea-Lect Gray Delrin, Buna Flapper Valve, 1" Smooth Hose Ports

Bosworth 74  1 1/8" Check Valve   Bosworth Foot Valve / Check Valve Sea-Lect Gray Delrin, Buna Flapper Valve, 1 1/8" Smooth Hose Ports

Bosworth 74-1M Foot/Check Valve   Bosworth- Foot Valve / Check Valve Sea-Lect Gray Delrin, Buna Flapper Valve, 1" Male Threads

Double Barb Inline Scupper Check Valve - 1-1/8" - Black A great solution to provide a scupper check valve in the drain line.  Allows use of standard thru-hull fittings in the cockpit and on the hull exterior.  Features: Prevents Backwash Chemical Resistant Materials Thermo-Plastic Flapper

In-Line Non-Return Check Valve - 1" In-line non-return valve. Connections for 25mm (1”) bore hose. Features: Connections: - for 25mm (1”) bore hose Dimensions: - 108mm long, 55mm wide, 50mm high (in-line configuration) Aids pump priming, prevents backflow from pump into bilge Fits into pump suction line Robust plastic construction with nitrile rubber valve Adjustable port configuration for convenient hose angle Actual Weight: 0.11 Kg  (Approx. 0.31 Kg packed) WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

Flotec PW73-63 Check Valve 1"Mnpt X 1"Fnpt  

Bosworth 400-H-Ale-1/2"F Guzzler 1/2" Hand Pmp,Tappd   Bosworth Hand Diaphragm Pump Guzzler Delrin, .44Qt per Stroke, 1/2" Female Threaded Ports, Buna Flapper Valves and Diaphragm, Horizontal Handle with Epoxy Coated Aluminum Clamp Ring for Durability

In-Line Check Valve 1"-1 1/2" Stepped Connection All Whale bilge switches, non-return valves, strainers and pipework fittings are designed and manufacturers with highest quality at heart. Combine these accessories with your whale bilge pump for a robust bilge system tailored to your vessel. LV1215 In-line Check Valve 25mm / 38mm (1"/ 1 1/2") Stepped Connection WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Double Barb Inline Scupper Check Valve - 1-1/2" - Black A great solution to provide a scupper check valve in the drain line.  Allows use of standard thru-hull fittings in the cockpit and on the hull exterior.  Features: Prevents Backwash Chemical Resistant Materials Thermo-Plastic Flapper