Thru-Hull Fittings

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... More Details

Plastic White Thru-Hull With Strainer - 3/4" Inner Diameter The Thru-Hull Connector with Strainer prevents clogging of the aerator pump. Also, the strainer attaches to threads that extend beyond the e... More Details

Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of th... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will las... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 1-1/4" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will las... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 1-1/8" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will las... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 1" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last th... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 3/4" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last ... More Details

Stainless Steel Thru-Hull Short Straight Barbed - 5/8" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last ... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/2" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will ... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/4" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will ... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will ... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 1" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 3/4" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will la... More Details

Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will la... More Details

White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter 90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking. ... More Details

White Plastic 90 Degree Thru-Hull Connector - 3/4" Inner Diameter 90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking. Sp... More Details

White Plastic Double Ended Connector - 3/4" Inner Diameter Double-Ended Thru-Hull provides a watertight transition through bulkheads or tanks.  Specifications: Fits Hose Size: (inch) 1-1/2" inner diam... More Details

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"... More Details

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" Inn... More Details

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" Inn... More Details

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1-1/2"-2" Thru-hull only for small Pro Series valves; mushroom head, buttress thread Documentation BrochureDownload PDF More Details

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1"-1-1/4" Thru-hull only for small Pro Series valves; mushroom head, buttress thread Documentation BrochureDownload PDF More Details

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1/2"-3/4" Thru-hull only for small Pro Series valves; mushroom head, buttress thread Documentation BrochureDownload PDF More Details

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 Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SK... More Details

1-1/2" 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: 1-1/2" Accessor... More Details

1-1/2" 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 Br... More Details

1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU ... More Details

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 Accessories SKU 6... More Details

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 Stain... More Details

1-1/2" 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 availa... More Details

1-1/2" Slotted Hi Speed Thru-Hull with Nut Features: 1-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 —... 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 Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SK... 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" Accessor... 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 Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU ... 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 Accessories SKU 6... 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" 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" Slotted Hi Speed Thru-Hull with Nut Features: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 —... 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 Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67... 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" Accessories SKU ... 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 Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6731... 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 Accessories SKU 67311... 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" 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" Slotted Hi Speed Thru-Hull with Nut Features: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG... 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" Accessories S... 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" 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

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" Accessor... 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 Accessories SKU 6... 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" Slotted Hi Speed Thru-Hull with Nut Features: 2-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted 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 Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67... 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" Accessories SKU ... 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 Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6731... 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 Accessories SKU 67311... 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" 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" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG... 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 Accessories SKU 67311... 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

3/4" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU ... 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" Accessories ... 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 Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 67... 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 Accessories SKU 673... 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" 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" Slotted Hi Speed Thru-Hull with Nut Features: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — M... 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 Accessories SKU 67311... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

Bronze Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

Bronze Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 673... More Details

Bronze Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

Bronze Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 673... More Details

Bronze Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

Bronze Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MF... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MF... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

Thru-Hull - 1-1/2" - White Thru-Hull assembly, 1-1/2", White 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

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 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 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" 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