Thru-Hull Fittings

Attwood Marine Thru-Hull 3/4" 3873-3Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.

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

Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" Features:NPS Thread With Hose Connection#316 Stainless SteelUL Listed 647B

Attwood Marine Thru Hull SS 5/8" Short 66540-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.

1-1/4" 90 Degree Hose Thru-Hull Fitting Features:90 Degree Barb#316 Stainless Steel Thru Hull with Bronze Hose ConnectionUL Listed 647B

2" BSPP Bronze Thru Hull Features: British Standard Pipe Parallel (BSPP) Thread C83600 Bronze Sizes from 1/2" to 4" UL Listed 647B Available with or without nut

Perko 1 1/2 Bronze Thru Hull with Nut 0322Dp8PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.

Perko 1 Bronze Thru Hull with Nut 0322Dp6PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.

Perko 1-1/2 Thru Hull Connection 0328Dp8Molded white plastic with broad flange. For use with hose. Not recommended for use below waterline. UL Listed

Perko 2 Bronze Thru Hull with Nut 0322009PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.

Perko 5/8 Thru Hull Connection 0328Dp4AMolded white plastic with broad flange. For use with hose. Not recommended for use below waterline. UL Listed

Perko Perko Plastic Thru-Hull 0301Dp5Molded white plastic with narrow flange. For use with hose. UL Listed

Perko Thru-Hull 1-1/2" Plastic 0301Dp8Molded white plastic with narrow flange. For use with hose. UL Listed

Sea-Dog Line Thru-Hull-3/4 520750Injection molded polypropylene.

Seachoice Thru-Hull Conn-White 11/2 x 90Deg 50-18121 One nut applicationDesigned for use with one back nut, unlike old style 90°, thru-hull with both front and back nutMade of hi-impact white plasticDesigned for easier application where hose is...

Attwood Marine 3/4" Thru Hull Connector 3896-3Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.

Attwood Marine Conn-Th .63 White 3872-1Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.

Attwood Marine Thru Hull SS 1" Short 66542-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.

Attwood Marine Thru Hull SS 1-1/2" Short 66545-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.

Attwood Marine Thru Hull SS 1-1/4" Short 66544-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.