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

  • GROCO Stainless Steel Hose Barb ThruHull Fitting 118 HTH1125S
    GROCO Stainless Steel Hose Barb ThruHull Fitting 118 HTH1125S
    Save $1.01 USD
    GROCO

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

    $41.99 USD
    $41.99 USD $43.00 USD

    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...
  • GROCO Stainless Steel Hose Barb ThruHull Fitting 12 HTH500S
    GROCO Stainless Steel Hose Barb ThruHull Fitting 12 HTH500S
    Save $1.01 USD
    GROCO

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" [HTH-500-S]

    $38.99 USD
    $38.99 USD $40.00 USD

    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...
  • GROCO Bronze Hose Barb ThruHull Fitting 58 HTH625
    GROCO Bronze Hose Barb ThruHull Fitting 58 HTH625
    Save $0.01 USD
    GROCO

    GROCO Bronze Hose Barb Thru-Hull Fitting - 5/8" [HTH-625]

    $31.99 USD
    $31.99 USD $32.00 USD

    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...
  • GROCO 12 NPS NPT Combo Bronze ThruHull Fitting wNut TH500W
    GROCO 12 NPS NPT Combo Bronze ThruHull Fitting wNut TH500W
    Save $0.01 USD
    GROCO

    GROCO 1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-500-W]

    $22.99 USD
    $22.99 USD $23.00 USD

    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...
  • GROCO 2 NPS NPT Combo Bronze ThruHull Fitting wNut TH2000W
    GROCO 2 NPS NPT Combo Bronze ThruHull Fitting wNut TH2000W
    Save $13.01 USD
    GROCO

    GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]

    $106.99 USD
    $106.99 USD $120.00 USD

    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...
  • GROCO 2 NPS NPT Combo Stainless Steel ThruHull Fitting wNut TH2000WS
    GROCO 2 NPS NPT Combo Stainless Steel ThruHull Fitting wNut TH2000WS
    Save $10.01 USD
    GROCO

    GROCO 2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-2000-WS]

    $84.99 USD
    $84.99 USD $95.00 USD

    2" 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...
  • GROCO 114 NPS NPT Combo Stainless Steel ThruHull Fitting wNut TH1250WS
    GROCO 114 NPS NPT Combo Stainless Steel ThruHull Fitting wNut TH1250WS
    Save $7.01 USD
    GROCO

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

    $59.99 USD
    $59.99 USD $67.00 USD

    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...
  • GROCO Bronze Hose Barb ThruHull Fitting 114 HTH1250
    GROCO Bronze Hose Barb ThruHull Fitting 114 HTH1250
    Save $7.01 USD
    GROCO

    GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/4" [HTH-1250]

    $61.99 USD
    $61.99 USD $69.00 USD

    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...
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