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Marine Plumbing & Ventilation - Thru-Hull Fittings

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    GROCO 1-1/4" 90 Degree Hose Thru-Hull Fitting [HTHC-1250-S]

    GROCO
    Only 3 left!

    1-1/4" 90 Degree Hose Thru-Hull Fitting Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Specif...

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    $23.00
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    $14.00
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    $14.00

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

    GROCO
    12 in stock

    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...

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    $35.00
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    $21.00
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    $21.00

    GROCO 1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-500-W]

    GROCO
    8 in stock

    1/2" Bronze Combo Scoop Thru-Hull w/NutFeatures: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 ...

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    $17.57
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    $17.57
    $4.00
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    $4.00

    Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]

    Perko
    17 in stock

    Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 5/8 Mounting Hole Diamete...

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    $17.57
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    $55.00
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    $33.00
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    $33.00

    GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]

    GROCO
    Only 2 left!

    1" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1" Mater...

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    $60.00
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    $60.00
    $36.00
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    $36.00

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

    GROCO
    Only 5 left!

    1" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 B...

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    $36.00
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    $42.00
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    $42.00
    $25.00
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    $25.00

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

    GROCO
    Only 3 left!

    3/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag...

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    $42.00
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    $332.00
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    $332.00
    $199.00
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    $199.00

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

    GROCO
    Only 2 left!

    3" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls.Features: NPS...

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    $199.00
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    $199.00
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    $22.00
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    $22.00
    $13.00
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    $13.00

    GROCO 3/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-750-WS]

    GROCO
    16 in stock

    3/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL...

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    $13.00
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    $66.76
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    $66.76
    $29.00
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    $29.00

    Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP5PLB]

    Perko
    9 in stock

    Perko 3/4" Thru-Hull Fitting w/ Pipe Thread BronzeFlange is machined to fit hull and grooved to retain bedding compound. Neckis threaded to appro...

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    $66.76
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    $29.00
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    $29.00
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    $27.99
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    $27.99
    $23.00
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    $23.00

    Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner Diameter [66546-3]

    Attwood Marine
    6 in stock

    Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings. ...

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    $27.99
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    $27.99
    $23.00
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    $23.00
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    $79.00
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    $79.00
    $47.00
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    $47.00

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

    GROCO
    8 in stock

    1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications:...

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    $47.00
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    $47.00
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    $16.19
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    $16.19
    $13.00
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    $13.00

    Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3]

    Attwood Marine
    19 in stock

    White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter90° Thru-Hulls are ideal for tight installations, such as livewell overflow dra...

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    $13.00
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    $13.00
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    $61.00
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    $61.00
    $37.00
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    $37.00

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

    GROCO
    Only 3 left!

    1" Slotted Hi Speed Thru-Hull with NutFeatures: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 1" Mat...

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    $61.00
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    $37.00
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    $37.00
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    $104.00
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    $104.00
    $62.00
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    $62.00

    GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]

    GROCO
    Only 4 left!

    1-1/4" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size...

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    $104.00
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    $104.00
    $62.00
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    $62.00
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    $131.00
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    $131.00
    $79.00
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    $79.00

    GROCO 1-1/2" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1500-W]

    GROCO
    Only 3 left!

    1-1/2" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size...

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    $131.00
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    $131.00
    $79.00
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    $79.00
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    $41.00
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    $41.00
    $25.00
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    $25.00

    GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]

    GROCO
    Only 2 left!

    3/4" Slotted Hi Speed Thru-Hull with NutFeatures: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted Specifications: Hose Size: 3/...

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    $89.00
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    $89.00
    $53.00
    $53.00 - $53.00
    $53.00

    GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]

    GROCO
    Only 3 left!

    1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/...

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    $89.00
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    $89.00
    $53.00
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    $53.00
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    $70.00
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    $70.00
    $42.00
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    $42.00

    GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]

    GROCO
    7 in stock

    1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" ...

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    $42.00
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    $42.00
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    $141.26
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    $141.26
    $62.00
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    $62.00

    Perko 1" Intake Strainer Bronze MADE IN THE USA [0065DP6PLB]

    Perko
    Only 5 left!

    Perko 1" Intake Strainer BronzeCast bronzeMachined SlotsTechnical Information: Maximum Pipe Size Inches: 1 Maximum Hull Thickness Inches: 2-1/2 ...

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    $141.26
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    $141.26
    $62.00
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    $62.00
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    $33.00
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    $33.00
    $20.00
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    $20.00

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

    GROCO
    8 in stock

    Bronze Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 3/4" ...

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    $33.00
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    $33.00
    $20.00
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    $20.00
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    $96.00
    $96.00 - $96.00
    $96.00
    $58.00
    $58.00 - $58.00
    $58.00

    GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]

    GROCO
    Only 5 left!

    1-1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C836...

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    $96.00
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    $96.00
    $58.00
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    $58.00
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    $118.72
    $118.72 - $118.72
    $118.72
    $63.00
    $63.00 - $63.00
    $63.00

    Perko 3/4" Thru-Hull Fitting w/Pipe Thread Bronze Extra Long - Max Hull 5" Thick [0348DP5PLB]

    Perko
    Only 5 left!

    Extra Long Thru-Hull Connection for Use with PipePart #: 0348DP5PLBFlange is machined to fit the hull and grooved to retain bedding compound neck ...

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    $118.72
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    $118.72
    $63.00
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    $63.00
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    $109.63
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    $109.63
    $51.00
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    $51.00

    Perko 3/4" Intake Strainer Bronze MADE IN THE USA [0065DP5PLB]

    Perko
    15 in stock

    Perko 3/4" Intake Strainer BronzeCast bronzeMachined SlotsTechnical Information: Maximum Pipe Size Inches: 3/4 Maximum Hull Thickness Inches: 2-3...

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    $109.63
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    $109.63
    $51.00
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    $51.00
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