Marine Plumbing & Ventilation - Thru-Hull Fittings

99 products


  • Sale -25% 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

    $30.00$22.50

  • Sale -65% 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$63.50

  • Sale -47% Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE  USA [0328DP8]

    Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8]

    Perko 1-1/2" Thru-Hull Fitting for Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1-1/2 Mounting Hole Diameter Inches: 1-7/8 Maximum Hull Thickness Inches: 1-7/8 O.D. Flange Inches: 3 MADE IN THE USA Specifications: Hose Size: 1-1/2" Material: Plastic Box Dimensions: 2"H x 2"W x 6"L WT: 0.3 lbs UPC: 085226768705

    $21.76$11.50

  • Sale -33% 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

    $63.00$42.50

  • Sale -35% GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

    GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

    1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/2" Material: Bronze Box Dimensions: 3"H x 3"W x 7"L WT: 1.65 lbs UPC: 742985141773

    $86.00$55.50

  • Sale -53% Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP5PLB]

    Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP5PLB]

    Perko 3/4" Thru-Hull Fitting w/ Pipe Thread BronzeFlange is machined to fit hull and grooved to retain bedding compound. Neckis threaded to approximately 3/8 inch from flange.Cast bronze.Technical Information: Pipe Size Inches: 3/4 Mouting Hole Diameter Inches: 1 Maximum Hull Thickness Inches: 1-1/2 O.D. Flange Inches: 1-7/8 Model Number: 0322DP5PLB Ship Weight: 2.4/11.6 lbs. MADE IN THE USA Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 2"H x 2"W x 4"L WT: 0.25 lbs UPC: 085226035951

    $66.76$31.50

  • Sale -44% GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W] GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]

    GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]

    2-1/2" Bronze Thru-Hull Fitting with NutHigher 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 listed 647B Includes nut  BSPP and stainless steel models are available Specifications:Thread NPS: 2-1/2" Specifications: Hose Size: 2-1/2" Material: Bronze Box Dimensions: 5"H x 5"W x 5"L WT: 3.2 lbs UPC: 742985064157

    $209.00$117.50

  • Sale -41% Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN   THE USA [0322DP4PLB]

    Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP4PLB]

    Perko 1/2" Thru-Hull Fitting w/ Pipe Thread BronzeFlange is machined to fit hull and grooved to retain bedding compound. Neckis threaded to approximately 3/8 inch from flange.Cast bronze.Technical Information: Pipe Size Inches: 1/2 Mouting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-3/8 O.D. Flange Inches: 1-1/2 Model Number: 0322DP4PLB Ship Weight: 1.8/7.9 lbs. MADE IN THE USA Specifications: Hose Size: 1/2" Material: Bronze Box Dimensions: 1"H x 1"W x 3"L WT: 0.3 lbs UPC: 085226035944

    $51.96$30.50

  • Sale -36% Perko Thru-Hull Scupper f/Mounting Through Transom [0323DP]

    Perko Thru-Hull Scupper f/Mounting Through Transom [0323DP]

    Thru-Hull Scupper for Mounting Through TransomFeatures: Molded White Polymer Soft Black Flapper Nut and Mounting Hardware Included Specifications: Hose Size: 1-1/2" Mounting Hole Diameter: 1-7/8" Max. Hole Thickness: 2-1/8" O.D. Flange: 2-7/8" Specifications: Hose Size: 1-1/2" Material: Plastic Box Dimensions: 4"H x 6"W x 10"L WT: 0.45 lbs UPC: 085226028502

    $60.09$38.50

  • 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]

    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 6"W x 6"L WT: 4.8 lbs UPC: 742985064164

    $299.00$167.50

  • Sale -34% GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]

    GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]

    1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 5"H x 6"W x 7"L WT: 2.1 lbs UPC: 742985175181

    $78.00$51.50

  • Sale -32% GROCO 3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-750-WS]

    GROCO 3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-750-WS]

    3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Hose Size: 3/4" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 8"L WT: 0.75 lbs UPC: 742985175167

    $57.00$38.50

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