Marine Plumbing & Ventilation - Thru-Hull Fittings

97 products


  • Sale -64% Perko 1-1/4" Intake Strainer Bronze MADE IN THE USA [0065DP7PLB]

    Perko 1-1/4" Intake Strainer Bronze MADE IN THE USA [0065DP7PLB]

    Perko 1-1/4" Intake Strainer BronzeCast bronzeMachined SlotsTechnical Information: Maximum Pipe Size Inches: 1-1/4 Maximum Hull Thickness Inches: 3 Dimensions Strainer Inches: 3-1/4 x 4-1/4 Model Number: 0065DP7PLB Ship Weight: 9.3/17.4 Screw Size: #8 Spare Flanged Nut: 0075

    $181.75$65.50

  • Sale -27% GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]

    GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]

    Bronze Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985005211

    $32.00$23.50

  • Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3]

    Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3]

    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 Diameter: (inch) 2-7/16" Installation Hole Size: (inch) 1-5/16" Drain Plug: (inch) 7/8" Color: White *Plastic Thru-Hull Connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/8" Material: Plastic Box Dimensions: 2"H x 4"W x 7"L WT: 0.25 lbs UPC: 022697387936 Quick Guide (pdf)

    $17.50

  • Sale -33% GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]

    GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]

    1" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available Specifications: Hose Size: 1" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 5"L WT: 0.7 lbs UPC: 742985146471

    $60.00$40.50

  • Sale -20% GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]

    GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]

    3/4" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: 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 Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985064102

    $23.00$18.50

  • Sale -32% GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250]

    GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250]

    Bronze Hose Barb Thru-Hull Fitting - 1-1/4" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 1-1/4" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 1.05 lbs UPC: 742985005235

    $58.00$39.50

  • Sale -44% GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting [HTHC-1500-S]

    GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting [HTHC-1500-S]

    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 Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 5"H x 6"W x 6"L WT: 2.2 lbs UPC: 742985139312

    $191.00$107.50

  • Sale -33% GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]

    GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]

    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" Specifications: Hose Size: 1" Material: Bronze Box Dimensions: 5"H x 5"W x 5"L WT: 1.2 lbs UPC: 742985063907

    $60.00$40.50

  • Sale -35% GROCO 1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1500-W]

    GROCO 1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1500-W]

    1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: 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 Specifications: Hose Size: 1-1/2" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 1.35 lbs UPC: 742985064133

    $71.00$46.50

  • Sale -12% Forespar Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1/2"-3/4" [930001SS]

    Forespar Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1/2"-3/4" [930001SS]

    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)

    $19.99$17.50

  • Sale -41% Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE  USA [0328DP6A]

    Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6A]

    Perko 1-⅛" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1-1/8 Mounting Hole Diameter Inches: 1-1/2 Maximum Hull Thickness Inches: 1-1/2 O.D. Flange Inches: 2-1/4 Model Number: 0328DP6A Ship Weight: 2.0/7.0 lbs. MADE IN THE USA Specifications: Hose Size: 1-1/8" Material: Plastic Box Dimensions: 2"H x 2"W x 4"L WT: 0.1 lbs UPC: 085226034152

    $16.19$9.50

  • Sale -34% GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]

    GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]

    1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Material: Stainless Steel Hose Size: 1" Box Dimensions: 5"H x 6"W x 7"L WT: 1.15 lbs UPC: 742985175174

    $64.00$42.50

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