Thru-Hull Fittings

3/4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

1" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

1-1/2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

Plastic Thru-Hull Fitting - 1-1/2" - White These thru-hulls are made with a durable, thermoplastic construction which prevents electrolysis. Caution: Thru-Hull connectors are designed for installation above the water line only. Specifications: Fits Hose Size: 1-1/2" I.D. Stem Length: 3-1/2" Max. Hull Thickness: 1-1/4" Flange Diameter: 3" Installation Hose Size: 1-7/8" to 2" Construction: Polypropylene 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.

2-1/2" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 2-1/2" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut  BSPP and stainless steel models are available Specifications: Thread NPS: 2-1/2"

3" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut  BSPP and stainless steel models are available Specifications: Thread NPS: 3"

1-1/2" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B

White Plastic Thru-Hull Fitting - 5/8" Inner Diameter This thru-hull fitting is made with a durable, thermoplastic construction, which prevents electrolysis. Specifications: Hose Size: (inch) 5/8" Inner diameter Stem Length: (inch) 3-1/4" Max Hull Thickness: (inch) 1-1/4" Flange Diameter: (inch) 1-3/4" Installation Hole Size: (inch) 1-1/8" Drain Plug: (inch) 5/8" Construction: Polypropylene Color: White  *Plastic thru-hull connectors are designed for installation above the water line only

White Plastic Thru-Hull Fitting - 3/4" Inner Diameter This thru-hull fitting is made with a durable, thermoplastic construction, which prevents electrolysis. Specifications: Hose Size: (inch) 3/4" Inner diameter Stem Length: (inch) 3-1/4" Max Hull Thickness: (inch) 1-1/4" Flange Diameter: (inch) 1-3/4" Installation Hole Size: (inch) 1-1/8" Drain Plug: (inch) 5/8" Construction: Polypropylene Color: White  *Plastic thru-hull connectors are designed for installation above the water line only

White Plastic Thru-Hull Fitting - 1-1/8" Inner Diameter This thru-hull fitting is made with a durable, thermoplastic construction, which prevents electrolysis. Specifications: Hose Size: (inch) 1-1/8" Inner diameter Stem Length: (inch) 3-1/4" Max Hull Thickness: (inch) 1-1/4" Flange Diameter: (inch) 2-1/4" Installation Hole Size: (inch) 1-3/8" Drain Plug: (inch) 7/8" Construction: Polypropylene Color: White  *Plastic thru-hull connectors are designed for installation above the water line only

Perko 1" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1 Mounting Hole Diameter Inches: 1-1-5/16 Maximum Hull Thickness Inches: 1-1/2 O.D. Flange Inches: 2-1/4 Model Number: 0328DP6 Ship Weight: 2.0/7.3 lbs. MADE IN THE USA

1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

2-1/2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze