Thru-Hull Fittings

Build dependable connections through the hull.

Shop marine thru-hull fittings, boat thru-hulls, bronze thru-hull fittings, stainless steel thru-hulls, composite thru-hulls, hose connections, threaded fittings, drain fittings and thru-hull accessories for sailboats, powerboats, fishing boats, cruisers, yachts and other marine applications.

Make the connection. Build it for the water. Adventure Starts Here.

107 products

  • Attwood Plastic ThruHull Fitting 112 White 38753
    Attwood Plastic ThruHull Fitting 112 White 38753
    Attwood Marine

    Attwood Plastic Thru-Hull Fitting - 1-1/2" - White [3875-3]

    $10.99 USD
    $10.99 USD $0.00 USD

    Plastic Thru-Hull Fitting - 1-1/2" - WhiteThese thru-hulls are made with a durable, thermoplastic construction which prevents electrolysis.Caution: Thru-Hull connectors are designed for installation above the...
  • GROCO Stainless Steel Hose Barb ThruHull Fitting 112 HTH1500S
    GROCO Stainless Steel Hose Barb ThruHull Fitting 112 HTH1500S
    Save $9.01 USD
    GROCO

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]

    $76.99 USD
    $76.99 USD $86.00 USD

    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...
  • GROCO Bronze Hose Barb ThruHull Fitting 2 HTH2000
    GROCO Bronze Hose Barb ThruHull Fitting 2 HTH2000
    Save $12.01 USD
    GROCO

    GROCO Bronze Hose Barb Thru-Hull Fitting - 2" [HTH-2000]

    $101.99 USD
    $101.99 USD $114.00 USD

    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...
  • GROCO Stainless Steel Hose Barb ThruHull Fitting 1 HTH1000S
    GROCO Stainless Steel Hose Barb ThruHull Fitting 1 HTH1000S
    Save $1.01 USD
    GROCO

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1" [HTH-1000-S]

    $39.99 USD
    $39.99 USD $41.00 USD

    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...
  • GROCO Stainless Steel Hose Barb ThruHull Fitting 2 HTH2000S
    GROCO Stainless Steel Hose Barb ThruHull Fitting 2 HTH2000S
    Save $11.01 USD
    GROCO

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2" [HTH-2000-S]

    $93.99 USD
    $93.99 USD $105.00 USD

    Stainless Steel Hose Barb Thru-Hull Fitting - 2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 2" Material: Stainless Steel...
  • GROCO 34 NPS NPT Combo Bronze ThruHull Fitting wNut TH750W
    GROCO 34 NPS NPT Combo Bronze ThruHull Fitting wNut TH750W
    Save $0.01 USD
    GROCO

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

    $24.99 USD
    $24.99 USD $25.00 USD

    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...
  • GROCO 114 NPS NPT Combo Bronze ThruHull Fitting wNut TH1250W
    GROCO 114 NPS NPT Combo Bronze ThruHull Fitting wNut TH1250W
    Save $6.01 USD
    GROCO

    GROCO 1-1/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1250-W]

    $54.99 USD
    $54.99 USD $61.00 USD

    1-1/4" 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...
  • GROCO Bronze Hose Barb ThruHull Fitting 34 HTH750
    GROCO Bronze Hose Barb ThruHull Fitting 34 HTH750
    Save $1.01 USD
    GROCO

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

    $36.99 USD
    $36.99 USD $38.00 USD

    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...
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