Marine Plumbing & Ventilation - Thru-Hull Fittings

1-1/2" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 1-1/2" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 1.2 lbs UPC: 742985193673

1-1/4" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 1-1/4" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 1.1 lbs UPC: 742985193666

3/4" Slotted Hi Speed Thru-Hull with NutFeatures: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985195523

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 Specifications: Hose Size: 2" Material: Plastic Box Dimensions: 3"H x 3"W x 3"L WT: 0.2 lbs Brochure (pdf)

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 Specifications: Hose Size: 1-1/4" Material: Plastic Box Dimensions: 2"H x 2"W x 3"L WT: 0.2 lbs Brochure (pdf)

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 Specifications: Hose Size: 3/4" Material: Plastic Box Dimensions: 2"H x 2"W x 3"L WT: 0.02 lbs Brochure (pdf)

White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking.Specifications: Fits Hose Size: (inch) 1-1/8"inner diameter Max Hull Thickness: (inch) 1-7/8" Flange...

Stainless Steel Thru-Hull Short Straight Barbed - 1" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316...

Stainless Steel Thru-Hull Standard Straight Barbed - 3/4" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?Rugged Stainless Construction: Cast from certified Enhanced 316...

3" Bronze Thru-Hull Fitting with NutHigher 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:...

White Plastic 90 Degree Thru-Hull Connector - 3/4" Inner Diameter90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking.Specifications: Fits Hose Size: (inch) 3/4"inner diameter Max Hull Thickness: (inch) 1" Flange...

White Plastic Thru-Hull Fitting - 1-1/8" Inner DiameterThis 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...