Thru-Hull Fittings

Attwood Marine Thru Hull SS 1-1/8" 66549-3Cast 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.

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

3/4" Hose Barb Stainless Hose Thru Hull Features: NPS Thread With Hose Connection #316 Stainless Steel Sizes from 1/2" to 2" Barb UL Listed 647B

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B

1-1/2" Hose Barb Stainless Hose Thru Hull Features: NPS Thread With Hose Connection #316 Stainless Steel Sizes from 1/2" to 2" Barb UL Listed 647B

Seachoice Thru-Hull Conn-White Plas-3/4 50-18051 Per ABYC "Safety Standards for Small Craft"Molded plastic with broad flange • Not recommended for use below the waterline.

Attwood Marine Thru Hull SS 3/4" 66547-3Cast 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" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available

3/4" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze

Attwood Marine Thru Hull SS 1" 66548-3Cast 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" NPS NPT Combo High Speed Pickup Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 3" Available with or without nut BSPP models...

1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available

3/4" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available

1-1/2" NPS NPT Combo Flush Thru Hull Features: Machined flat face for flush mount or dripless applications NPSM / NPT combination thread C84400 Bronze Sizes from 1/2" to 5" Available with or without nut

Sea-Dog Line Thru-Hull Fitting 3/4" 520750-1Injection molded polypropylene.

Seachoice Thru Hull W/SS Cover-1 1/8 90 50-18561 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.

Attwood Marine Thru Hull 1-1/2" White 3875-3Molded 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.

1-1/2" NPS NPT Combo XL Bronze Thru Hull Features: Extra long NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 2" Available with or without nut Stainless Steel models availab  

1-1/4" NPS NPT Combo XL Bronze Thru Hull Features: Extra long NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 2" Available with or without nut Stainless Steel models available

1/2" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available