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Marine Plumbing & Ventilation - Thru-Hull Fittings

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

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

    $51.99
    $78.00
    $51.99
    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...
    $51.99
    $78.00
    $51.99
  • GROCO 3/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-750-W]
    GROCO

    GROCO 3/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-750-W]

    $32.99
    $49.00
    $32.99
    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" Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 5"H x 5"W x 5"L WT: 1.15 lbs UPC: 742985063891
    $32.99
    $49.00
    $32.99
  • GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]
    GROCO

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

    $39.99
    $60.00
    $39.99
    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...
    $39.99
    $60.00
    $39.99
  • GROCO 1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1250-WS]
    GROCO

    GROCO 1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1250-WS]

    $44.99
    $67.00
    $44.99
    1-1/4" 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: 1-1/4" Material: Stainless Steel Box Dimensions: 5"H x 5"W x...
    $44.99
    $67.00
    $44.99
  • GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]
    GROCO

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

    $52.99
    $79.00
    $52.99
    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
    $52.99
    $79.00
    $52.99
  • Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP4PLB]
    Perko

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

    $29.99
    $51.96
    $29.99
    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....
    $29.99
    $51.96
    $29.99
  • GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting [HTHC-1500-S]
    GROCO

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

    $138.99
    $208.00
    $138.99
    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
    $138.99
    $208.00
    $138.99
  • GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut [STH-1000-W]
    GROCO

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

    $45.99
    $68.00
    $45.99
    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
    $45.99
    $68.00
    $45.99
  • Perko 1/2" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4]
    Perko

    Perko 1/2" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4]

    $3.99
    $7.57
    $3.99
    Perko 1/2" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1/2 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.D. Flange Inches: 1-1/2 Model Number: 0328DP4 Ship Weight: 1.0/5.8 lbs. MADE IN THE USA Specifications: Hose...
    $3.99
    $7.57
    $3.99
  • Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6A]
    Perko

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

    $4.99
    $16.19
    $4.99
    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...
    $4.99
    $16.19
    $4.99
  • GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]
    GROCO

    GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]

    $39.99
    $60.00
    $39.99
    3/4" 90 Degree Hose Thru-Hull Fitting Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Specifications: Material: Stainless Steel Hose Size: 3/4" Box Dimensions: 3"H x 3"W x 5"L WT: 0.75 lbs UPC: 742985139282
    $39.99
    $60.00
    $39.99
  • GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]
    GROCO

    GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]

    $121.99
    $183.00
    $121.99
    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" Specifications: Hose Size: 2" Material: Bronze Box Dimensions: 5"H x 6"W x 6"L WT: 3.3 lbs UPC: 742985101739
    $121.99
    $183.00
    $121.99
  • GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]
    GROCO

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

    $233.99
    $365.00
    $233.99
    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:...
    $233.99
    $365.00
    $233.99
  • GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]
    GROCO

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

    $81.99
    $122.00
    $81.99
    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...
    $81.99
    $122.00
    $81.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125-S]
    GROCO

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

    $28.99
    $43.00
    $28.99
    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
    $28.99
    $43.00
    $28.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]
    GROCO

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

    $23.99
    $35.00
    $23.99
    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
    $23.99
    $35.00
    $23.99
  • GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]
    GROCO

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

    $45.99
    $69.00
    $45.99
    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: 0.74 lbs UPC: 742985193659
    $45.99
    $69.00
    $45.99
  • GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]
    GROCO

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

    $64.99
    $97.00
    $64.99
    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
    $64.99
    $97.00
    $64.99
  • GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]
    GROCO

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

    $16.99
    $25.00
    $16.99
    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...
    $16.99
    $25.00
    $16.99
  • GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]
    GROCO

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

    $17.99
    $26.00
    $17.99
    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...
    $17.99
    $26.00
    $17.99