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Thru-Hull Fittings

Thru-Hull Fittings

  • Groco 1-1/2" BSPP Bronze Thru Hull Th-150-W

    Groco 1-1/2" BSPP Bronze Thru Hull Th-150-W

    Groco

    $71.00 $54.99
    1-1/2" BSPP Bronze Thru Hull Features: British Standard Pipe Parallel (BSPP) Thread C83600 Bronze Sizes from 1/2" to 4" UL Listed 647B Available with or without nut
    Part Number:
    34-TH150W
    Availability:
    In Stock - Ships same or next business day.
    Thread BSPP:
    G 1 1/2"
    A:
    80
    B:
    7.62
    C:
    73.41
    $71.00 $54.99
  • GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-1250-W

    GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-1250-W

    Groco

    $62.00 $41.14
    1-1/4" NPS NPT Combo High Speed Pickup Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 3" Available with or without nut BSPP models...
    Part Number:
    34-HSTH1250W
    Availability:
    In Stock - Ships same or next business day.
    Thread NPS:
    1-1/4"
    A:
    2.9
    B:
    0.3
    C:
    2.62
    $62.00 $41.14
  • Seachoice Thru Hull Conn-White Plas-1 1/8 50-18091

    Seachoice Thru Hull Conn-White Plas-1 1/8 50-18091

    Seachoice

    $9.49 $7.32
    Seachoice Thru Hull Conn-White Plas-1 1/8 50-18091 Per ABYC "Safety Standards for Small Craft"Molded plastic with broad flange • Not recommended for use below the waterline.
    Part Number:
    50-18091
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/8"
    Flange:
    1-7/8"
    Max Hull Thickness:
    1-1/4"
    $9.49 $7.32
  • Attwood Marine Thru Hull SS 3/4" Short 66541-3

    Attwood Marine Thru Hull SS 3/4" Short 66541-3

    Attwood Marine

    $45.08 $24.99
    Attwood Marine Thru Hull SS 3/4" Short 66541-3 Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.
    Part Number:
    23-665413
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    3/4"
    Flange:
    1-7/8"
    Max Hull Thickness:
    5/8"
    $45.08 $24.99
  • Attwood Marine Thru Hull SS 5/8" 66546-3

    Attwood Marine Thru Hull SS 5/8" 66546-3

    Attwood Marine

    $37.89 $21.90
    Attwood Marine Thru Hull SS 5/8" 66546-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.
    Part Number:
    23-665463
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    5/8"
    Flange:
    1-7/8"
    Max Hull Thickness:
    1-1/16"
    $37.89 $21.90
  • Attwood Marine Thru-Hull 1 1/8" 3874-3

    Attwood Marine Thru-Hull 1 1/8" 3874-3

    Attwood Marine

    $11.39 $7.70
    Attwood Marine Thru-Hull 1 1/8" 3874-3Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.
    Part Number:
    23-38743
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/8" - 1-1/4"
    Flange:
    2-1/4"
    Max Hull Thickness:
    1-1/4"
    Pkg.:
    Card
    $11.39 $7.70
  • Attwood Marine Thru-Hull 3/4" 3873-3

    Attwood Marine Thru-Hull 3/4" 3873-3

    Attwood Marine

    $7.69 $5.41
    Attwood Marine Thru-Hull 3/4" 3873-3Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.
    Part Number:
    23-38733
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    3/4"
    Flange:
    1-3/4"
    Max Hull Thickness:
    1-1/4"
    Pkg.:
    Card
    $7.69 $5.41
  • Groco Bronze T-Hull with Nut G 2 Th-200-W

    Groco Bronze T-Hull with Nut G 2 Th-200-W

    Groco

    $107.00 $79.99
    2" BSPP Bronze Thru Hull Features: British Standard Pipe Parallel (BSPP) Thread C83600 Bronze Sizes from 1/2" to 4" UL Listed 647B Available with or without nut
    Part Number:
    34-TH200W
    Availability:
    In Stock - Ships same or next business day.
    Thread BSPP:
    2"
    A:
    99.1
    B:
    7.62
    C:
    84.58
    $107.00 $79.99
  • Perko 1 1/4 Bronze Thru Hull with Nut 0322Dp7Plb

    Perko 1 1/4 Bronze Thru Hull with Nut 0322Dp7Plb

    Perko

    $124.99 $72.99
    Perko 1 1/4 Bronze Thru Hull with Nut 0322Dp7Plb Cast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.
    Part Number:
    9-0322DP7PLB
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/4"
    Flange:
    2-3/4"
    Max Hull Thickness:
    2"
    $124.99 $72.99
  • Perko 1-1/2 Thru Hull Connection 0328Dp8

    Perko 1-1/2 Thru Hull Connection 0328Dp8

    Perko

    $17.29 $11.99
    Perko 1-1/2 Thru Hull Connection 0328Dp8 Molded white plastic with broad flange. For use with hose. Not recommended for use below waterline. UL Listed
    Part Number:
    9-0328DP8
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/2"
    Flange:
    3" OD
    Max Hull Thickness:
    1-7/8"
    $17.29 $11.99
  • Seachoice Thru Hull W/SS Cover-1 1/2 St 50-18481

    Seachoice Thru Hull W/SS Cover-1 1/2 St 50-18481

    Seachoice

    $18.99 $11.24
    Seachoice Thru Hull W/SS Cover-1 1/2 St 50-18481 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.
    Part Number:
    50-18481
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/2"
    Flange:
    2-3/8"
    Max Hull Thickness:
    1-3/8"
    $18.99 $11.24
  • Perko 1/2 Bronze Thru Hull with Nut 0322Dp4Plb

    Perko 1/2 Bronze Thru Hull with Nut 0322Dp4Plb

    Perko

    $55.19 $36.99
    Perko 1/2 Bronze Thru Hull with Nut 0322Dp4Plb Cast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.
    Part Number:
    9-0322DP4PLB
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1/2"
    Flange:
    1-1/2"
    Max Hull Thickness:
    1-3/8"
    $55.19 $36.99
  • Seachoice 1 1/8 SS Thru-Hull Straight 50-18461

    Seachoice 1 1/8 SS Thru-Hull Straight 50-18461

    Seachoice

    $12.48 $11.99
    Seachoice 1 1/8 SS Thru-Hull Straight 50-18461 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.
    Part Number:
    50-18461
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/8"
    Flange:
    1-7/8"
    Max Hull Thickness:
    1-3/8"
    $12.48 $11.99
  • Seachoice Thru Hull W/SS Cover-1 1/2 90 50-18581

    Seachoice Thru Hull W/SS Cover-1 1/2 90 50-18581

    Seachoice

    $31.99 $19.99
    Seachoice Thru Hull W/SS Cover-1 1/2 90 50-18581 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.
    Part Number:
    50-18581
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/2"
    Flange:
    2-3/8"
    Max Hull Thickness:
    1-3/8"
    $31.99 $19.99
  • Attwood Marine Thru Hull SS 5/8" Short 66540-3

    Attwood Marine Thru Hull SS 5/8" Short 66540-3

    Attwood Marine

    $33.49 $19.32
    Attwood Marine Thru Hull SS 5/8" Short 66540-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.
    Part Number:
    23-665403
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    5/8"
    Flange:
    1-7/8"
    Max Hull Thickness:
    5/8"
    $33.49 $19.32
  • Attwood Marine Thru-Hull Connector 5/8" White 3872-3

    Attwood Marine Thru-Hull Connector 5/8" White 3872-3

    Attwood Marine

    $9.39 $5.79
    Attwood Marine Thru-Hull Connector 5/8" White 3872-3Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a flush fit is required. White.
    Part Number:
    23-38723
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    5/8"
    Flange:
    1-3/4"
    Max Hull Thickness:
    1-1/4"
    Pkg.:
    Card
    $9.39 $5.79
  • Perko 1 1/2 Bronze Thru Hull with Nut 0322Dp8Plb

    Perko 1 1/2 Bronze Thru Hull with Nut 0322Dp8Plb

    Perko

    $145.99 $87.28
    Perko 1 1/2 Bronze Thru Hull with Nut 0322Dp8PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.
    Part Number:
    9-0322DP8PLB
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1-1/2"
    Flange:
    3"
    Max Hull Thickness:
    2-1/4"
    $145.99 $87.28
  • Perko 1 Bronze Thru Hull with Nut 0322Dp6Plb

    Perko 1 Bronze Thru Hull with Nut 0322Dp6Plb

    Perko

    $78.89 $47.19
    Perko 1 Bronze Thru Hull with Nut 0322Dp6PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange nut. UL Listed.
    Part Number:
    9-0322DP6PLB
    Availability:
    In Stock - Ships same or next business day.
    Hose:
    1"
    Flange:
    2-3/16"
    Max Hull Thickness:
    1-7/8"
    $78.89 $47.19