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Marine Plumbing & Ventilation - Thru-Hull Fittings

Rugged thru-hull fittings for secure water intake and discharge connections.

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  • 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]
    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...
    $76.99
    $76.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1" [HTH-1000-S]
    GROCO
    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1" [HTH-1000-S]
    Stainless Steel Hose Barb Thru-Hull Fitting - 1" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 5"L WT: 0.65 lbs UPC: 742985139039
    $31.99
    $31.99
  • GROCO 2-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2500-W]
    GROCO
    GROCO 2-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2500-W]
    2-1/2" 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: 2-1/2" Specifications: Hose Size: 2-1/2" Material: Bronze Box Dimensions: 4"H x 4"W x 6"L WT: 1.5 lbs UPC: 742985172227
    $181.99
    $252.00
    $181.99
  • GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4" [HTH-750]
    GROCO
    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
    $26.99
    $26.99
  • GROCO Bronze Hose Barb Thru-Hull Fitting - 1" [HTH-1000]
    GROCO
    GROCO Bronze Hose Barb Thru-Hull Fitting - 1" [HTH-1000]
    Bronze Hose Barb Thru-Hull Fitting - 1" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 1" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.7 lbs UPC: 742985005228
    $34.99
    $34.99
  • GROCO 1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1250-WS]
    GROCO
    GROCO 1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1250-WS]
    1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Hose Size: 1-1/4" Material: Stainless Steel Box Dimensions: 5"H x 6"W x 7"L WT: 1.8 lbs UPC: 742985174894
    $60.99
    $78.00
    $60.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" [HTH-750-S]
    GROCO
    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" [HTH-750-S]
    Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 3/4" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985138988
    $28.99
    $28.99
  • GROCO 1" 90 Degree Hose Thru-Hull Fitting [HTHC-1000-S]
    GROCO
    GROCO 1" 90 Degree Hose Thru-Hull Fitting [HTHC-1000-S]
    1" 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" Material: Stainless Steel Box Dimensions: 5"H x 5"W x 5"L WT: 1.2 lbs UPC: 742985139299
    $52.99
    $68.00
    $52.99
  • 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]
    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
    $32.99
    $32.99
  • GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250]
    GROCO
    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
    $45.99
    $45.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]
    GROCO
    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]
    Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 5"H x 5"W x 5"L WT: 1.25 lbs UPC: 742985139015
    $65.99
    $65.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" [HTH-500-S]
    GROCO
    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" [HTH-500-S]
    Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1/2" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 4"L WT: 0.45 lbs UPC: 742985142121
    $30.99
    $30.99
  • GROCO Bronze Hose Barb Thru-Hull Fitting - 5/8" [HTH-625]
    GROCO
    GROCO Bronze Hose Barb Thru-Hull Fitting - 5/8" [HTH-625]
    Bronze Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 5/8" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs UPC: 742985062269
    $22.99
    $22.99
  • GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250-S]
    GROCO
    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250-S]
    Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1-1/4" Material: Stainless Steel Box Dimensions: 3"H x 3"W x 5"L WT: 1 lbs UPC: 742985139008
    $53.99
    $53.99
  • GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]
    GROCO
    GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]
    1" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1" Material: Bronze Box Dimensions: 3"H x 3"W x 6"L WT: 1 lbs UPC: 742985141759
    $40.99
    $40.99
  • GROCO Bronze Hose Barb Thru-Hull Fitting - 2" [HTH-2000]
    GROCO
    GROCO Bronze Hose Barb Thru-Hull Fitting - 2" [HTH-2000]
    Bronze Hose Barb Thru-Hull Fitting - 2" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 2" Material: Bronze Box Dimensions: 4"H x 4"W x 5"L WT: 1.65 lbs UPC: 742985097421
    $71.99
    $71.99
  • GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]
    GROCO
    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
    $69.99
    $69.99
  • GROCO 3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-750-WS]
    GROCO
    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
    $45.99
    $59.00
    $45.99
  • GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]
    GROCO
    GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]
    1-1/2" 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: 1-1/2" Specifications: Hose Size: 1-1/2" Material: Bronze Box Dimensions: 5"H x 6"W x 7"L WT: 2.2 lbs UPC: 742985063921
    $71.99
    $71.99
  • 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]
    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
    $28.99
    $28.99

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