Marine Plumbing & Ventilation - Thru-Hull Fittings

101 products


  • Sale -23% GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]

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

    13 in stock

    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

    13 in stock

    $33.00$25.50

  • Sale -62% Perko 1-1/4" Intake Strainer Bronze MADE IN THE USA [0065DP7PLB]

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

    9 in stock

    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 Specifications: Material: Bronze Hose Size: 1-1/4" Box Dimensions: 1"H x 4"W x 4"L WT: 1.85 lbs UPC: 085226342271

    9 in stock

    $181.75$69.50

  • Sale -44% GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W] GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]

    GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]

    6 in stock

    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: 3" Specifications: Hose Size: 3" Material: Bronze Box Dimensions: 5"H x 5"W x 5"L WT: 4.8 lbs UPC: 742985064164

    6 in stock

    $332.00$185.50

  • Sale -43%Last stock! GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]

    GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]

    4 in stock

    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 Specifications: Hose Size: 2" Material: Bronze Box Dimensions: 4"H x 4"W x 5"L WT: 1.7 lbs UPC: 742985142909

    4 in stock

    $107.00$61.50

  • Sale -22% GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

    20 in stock

    Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 5/8" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985138971

    20 in stock

    $34.00$26.50

  • Sale -27% GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]

    18 in stock

    Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1-1/8" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 5"L WT: 0.7 lbs UPC: 742985138995

    18 in stock

    $43.00$31.50

  • Sale -29%Last stock! GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]

    GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]

    4 in stock

    1" Slotted Hi Speed Thru-Hull with NutFeatures: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 1" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.7 lbs UPC: 742985193659

    4 in stock

    $61.00$43.50

  • Sale -32% GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]

    GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]

    9 in stock

    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" Specifications: Hose Size: 1-1/4" Material: Bronze Box Dimensions: 5"H x 5"W x 5"L WT: 1.9 lbs UPC: 742985063914

    9 in stock

    $86.00$58.50

  • Sale -15% 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]

    13 in stock

    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

    13 in stock

    $23.00$19.50

  • Sale -15%Last stock! GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]

    GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]

    4 in stock

    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 Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 3"H x 3"W x 5"L WT: 0.45 lbs UPC: 742985141728

    4 in stock

    $23.00$19.50

  • Sale -48%Last stock! Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]

    Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]

    5 in stock

    Perko 1-1/8" Thru-Hull Connection f/ use with Hose Chrome Plated BronzeFlange is machined to fit and grooved to retain bedding compound neck isthreaded to approximately 3/16 inch from flange. Cast bronze, plain or chromed brass Regular or short length versons Regular Length- Fits maximum hull thickness up to 2 inchesShort Length- For thin hull sections up to 5/8 inches maximumRegular Length - Chrome Plated Bronze Technical Information: Hose Size Inches: 1-1/8 Mounting Hole Diameter Inches: 1-5/16 Maximum Hull Thickness Inches: 1-3/4 O.D. Flange Inches: 2-1/4 Model Number: 035006ADPC Ship Weight: 4.6/8.9 lbs. Made in the USA Specifications: Hose Size: 1-1/8" Material: Bronze Box Dimensions: 3"H x 3"W x 5"L WT: 0.9 lbs UPC: 085226036118

    5 in stock

    $113.32$58.50

  • Sale -46% Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]

    Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]

    6 in stock

    Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 5/8 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.D. Flange Inches: 1-1/2 Model Number: 0328DP4A Ship Weight: 1.0/6.1 lbs. MADE IN THE USA Specifications: Hose Size: 5/8" Material: Plastic Box Dimensions: 1"H x 1"W x 3"L WT: 0.1 lbs UPC: 085226000065

    6 in stock

    $17.57$9.50

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