Thru-Hull Fittings

90-Degree Cockpit Scupper Drain - White This cockpit scupper drain is an affordable and durable solution for draining areas below the waterline. Made from high-strength, UV-stabilized polymer, it feat... More Details

1-1/2" Duplex Stainless Steel 90 Degree Thru-Hull Fitting Specifications: Hose Size: 1-1/2" Dimensions: Flange O.D.: 2-3/8" Thread Length: 1-5/8" Barb Length: 1-1/2" Overall Length: 4" Cut Out: 1-1/2"... More Details

Thru-Hull with Scupper Valve - Injection Molded Acetel This Thru-Hull Scupper Valve mounts through the transom and provides a water exit for boats with self-bailing cockpits. Ideal for above the water... More Details

Thru-Hull Scupper for Mounting Through Transom Features: Molded White Polymer Soft Black Flapper Nut and Mounting Hardware Included Specifications: Hose Size: 1-1/2" Mounting Hole Diameter: 1-7/8" Max... More Details

Perko 8" x 5-1/8" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/8 & 1/2 Dimensions Strainer Inches: 3-1/2 X 2-1/2 Model Number: 0066DP1PLB Ship We... More Details

6-1/4" X 4-1/4" Scoop Strainer Bronze Features: Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 1-1/4 & 1-1/2 Dimensions Strainer Inches: 6-1/4 X 4-1/4 Model Number: 0066DP... More Details

Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 5/8 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.... More Details

Perko 5/8" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bro... More Details

Perko 5/8" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ... More Details

Perko 5" X 3-1/4" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/4 & 1 Dimensions Strainer Inches: 5 X 3-1/4 Model Number: 0066DP2PLB Ship Weight: ... More Details

Perko 3/4" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical... More Details

Extra Long Thru-Hull Connection for Use with Pipe Part #: 0348DP5PLB Flange is machined to fit the hull and grooved to retain bedding compound neck is threaded to approximately 3/8 inch from flange. M... More Details

3/4" Thru-Hull Fitting f/Hose - Plastic Narrow Flange Features: Molded white Narrow Flange Specifications: Hose Size: 3/4" Mounting Hole Diameter: 1" Max. Hull Thickness: 1-7/16" O.D. Flange: 1-1/2" P... More Details

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 3/4 Mounting Hole Diameter Inches: 1 Maximum Hull Thickness Inches: 1-7/16 O.D. ... More Details

Perko 3/4" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bro... More Details

Perko 3/4" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ... More Details

Perko 3/4" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 3/4 Maximum Hull Thickness Inches: 2-3/16 Dimensions Strainer Inches: 3 x 4 Model Number: ... More Details

Perko 3-1/2" X 2-1/2" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/8 & 1/2 Dimensions Strainer Inches: 3-1/2 x 2-1/2 Model Number: 0066DP1PLB Shi... More Details

Perko 2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast Bronze. Technical I... More Details

Perko 1/2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical... More Details

Perko 1/2" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1/2 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.... More Details

Perko 1/2" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1/2 Maximum Hull Thickness Inches: 2-1/4 Dimensions Strainer Inches: 3 x 4 Model Number: 0... More Details

Perko 1" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical I... More Details

Perko 1" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ch... More Details

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... More Details

Perko 1" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronz... More Details

Perko 1" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1 Maximum Hull Thickness Inches: 2-1/2 Dimensions Strainer Inches: 3 x 4 Model Number: 0065D... More Details

1-1/8" Thru-Hull Fitting for Hose Narrow Flange - Plastic Features: Molded white Narrow Flange Specifications: Hose Size: 1-1/8" Mounting Hole Diameter: 1-5/16" Max. Hull Thickness: 1-1/2" O.D. Flange... More Details

Perko 1-⅛" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1-1/8 Mounting Hole Diameter Inches: 1-1/2 Maximum Hull Thickness Inches: 1-1/2 ... More Details

Perko 1-1/8" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast b... More Details

Perko 1-1/8" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

Perko 1-1/4" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technic... More Details

Perko 1-1/4" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

Perko 1-1/4" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1-1/4 Maximum Hull Thickness Inches: 3 Dimensions Strainer Inches: 3-1/4 x 4-1/4 Model N... More Details

Perko 1-1/2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technic... More Details

Perko 1-1/2" Thru-Hull Fitting for Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1-1/2 Mounting Hole Diameter Inches: 1-7/8 Maximum Hull Thickness Inches: 1-7... More Details

Perko 1-1/2" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast b... More Details

Perko 1-1/2" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

Thru-Hull - 1-1/2" - White Thru-Hull assembly, 1-1/2", White Product Specifications Dimensions5" L × 3" W × 3" HShipping Weight0.4 lbCountry of OriginUNITED STATESHarmonized Code3917.40.00.90 More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.5 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.5 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions5" L × 5" W × 5" HShipping Weight1.55 l... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.45... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.65 l... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions5" L × 3" W × 3" HShipping Weight0.... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions5" L × 3" W × 3" HShipping Weight1 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Product Specifications Dimensions5" L × 5" W × 5" HShipping Weight1.... More Details

Bronze Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.53 lbCountry of Or... More Details

Bronze Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.5 lbCountry of Ori... More Details

Bronze Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions5" L × 4" W × 4" HShipping Weight1.65 lbCountry of Orig... More Details

Bronze Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.45 lbCountry of Or... More Details

Bronze Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.7 lbCountry of Origi... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.7 lbCountry of O... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight1.05 lbCountry of ... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight1.25 lbCountry of ... More Details

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 Product Specification... More Details

3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Product Specifications Dimensions8" L × 2" W × 2" HShipping Weight0.75 ... More Details

3/4" Slotted Hi Speed Thru-Hull with Nut Features: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.5 lbCountry of ... More Details

3/4" 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 availabl... More Details

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 Stainle... More Details

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 Product Specificati... More Details

3/4" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Product Specifications Dimensions7" L × 3" W × 3" HShipping Weight0.8 lbCountry of Orig... More Details

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

3/4" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 3/4" Product Spec... More Details

3/4" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Product Specifications Dimensions5" L × 3" W × 3" HShipping We... More Details

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 6... More Details

3" 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 Product Specification... More Details

2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Product Specifications Dimensions7" L × 6" W × 5" HShipping Weight2.6 lbC... More Details

2" 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 ... More Details

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... More Details

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 Product Specification... More Details

2" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Product Specifications Dimensions6" L × 4" W × 4" HShipping Weight2.6 lbCountry of Origin... More Details

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

2" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 2" Product Specific... More Details

2" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Product Specifications Dimensions10" L × 5" W × 5" HShipping Wei... More Details

2-1/2" Slotted Hi Speed Thru-Hull with Nut Features: 2-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Product Specifications Dimensions5" L × 4" W × 4" HShipping Weight2.1 lbCountry... More Details

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 ... More Details

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 Product Specifica... More Details

2-1/2" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 2-1/2" Product ... More Details

1/2" 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 availabl... More Details

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 Stainle... More Details

1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1/2" Product Speci... More Details

1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Product Specifications Dimensions7" L × 6" W × 5" HShipping Weight1.15 lb... More Details

1" Slotted Hi Speed Thru-Hull with Nut Features: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight0.74 lbCountry of Ori... More Details

1" 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 ... More Details

1" 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... More Details

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 Product Specification... More Details

1" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Product Specifications Dimensions6" L × 3" W × 3" HShipping Weight1 lbCountry of OriginCH... More Details

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

1" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1" Product Specific... More Details

1" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Product Specifications Dimensions5" L × 5" W × 5" HShipping Weig... More Details

1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Product Specifications Dimensions7" L × 6" W × 5" HShipping Weight1.8... More Details

1-1/4" Slotted Hi Speed Thru-Hull with Nut Features: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Product Specifications Dimensions4" L × 3" W × 3" HShipping Weight1.1 lbCountry... More Details

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 availa... More Details

1-1/4" 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 Stain... More Details

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 Product Specifica... More Details

1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Product Specifications Dimensions6" L × 3" W × 3" HShipping Weight1.8 lbCountry of Or... More Details

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

1-1/4" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1-1/4" Product ... More Details

1-1/4" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Product Specifications Dimensions6" L × 6" W × 5" HShipping ... More Details