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Marine Plumbing & Ventilation - Thru-Hull Fittings

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

    GROCO
    $313.00
    $313.00 - $313.00
    $313.00
    $208.99
    $208.99 - $208.99
    $208.99
    Low stock

    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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    $313.00
    $313.00 - $313.00
    $313.00
    $208.99
    $208.99 - $208.99
    $208.99
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  • Save 27% Save %

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

    GROCO
    $52.00
    $52.00 - $52.00
    $52.00
    $37.99
    $37.99 - $37.99
    $37.99
    Low stock

    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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    $52.00
    $52.00 - $52.00
    $52.00
    $37.99
    $37.99 - $37.99
    $37.99
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  • Save 24% Save %

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

    GROCO
    $21.00
    $21.00 - $21.00
    $21.00
    $15.99
    $15.99 - $15.99
    $15.99
    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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    $21.00
    $21.00 - $21.00
    $21.00
    $15.99
    $15.99 - $15.99
    $15.99
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  • Save 49% Save %

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

    Perko
    $66.76
    $66.76 - $66.76
    $66.76
    $33.99
    $33.99 - $33.99
    $33.99
    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
    $66.76 - $66.76
    $66.76
    $33.99
    $33.99 - $33.99
    $33.99
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  • Save 11% Save %

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

    Attwood Marine
    $27.99
    $27.99 - $27.99
    $27.99
    $24.99
    $24.99 - $24.99
    $24.99
    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
    $27.99 - $27.99
    $27.99
    $24.99
    $24.99 - $24.99
    $24.99
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    GROCO 1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1500-WS]

    GROCO
    $79.00
    $79.00 - $79.00
    $79.00
    $57.99
    $57.99 - $57.99
    $57.99
    Low 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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    $79.00
    $79.00 - $79.00
    $79.00
    $57.99
    $57.99 - $57.99
    $57.99
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  • Save 14% Save %

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

    Attwood Marine
    $16.19
    $16.19 - $16.19
    $16.19
    $13.99
    $13.99 - $13.99
    $13.99
    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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    $16.19
    $16.19 - $16.19
    $16.19
    $13.99
    $13.99 - $13.99
    $13.99
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  • Save 33% Save %

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

    GROCO
    $98.00
    $98.00 - $98.00
    $98.00
    $65.99
    $65.99 - $65.99
    $65.99
    Low stock

    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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    $98.00
    $98.00 - $98.00
    $98.00
    $65.99
    $65.99 - $65.99
    $65.99
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    GROCO 1-1/2" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1500-W]

    GROCO
    $123.00
    $123.00 - $123.00
    $123.00
    $81.99
    $81.99 - $81.99
    $81.99
    Low stock

    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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    $123.00
    $123.00 - $123.00
    $123.00
    $81.99
    $81.99 - $81.99
    $81.99
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  • Save 26% Save %

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

    GROCO
    $57.00
    $57.00 - $57.00
    $57.00
    $41.99
    $41.99 - $41.99
    $41.99
    Low stock

    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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    $57.00
    $57.00 - $57.00
    $57.00
    $41.99
    $41.99 - $41.99
    $41.99
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    GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]

    GROCO
    $40.00
    $40.00 - $40.00
    $40.00
    $28.99
    $28.99 - $28.99
    $28.99
    Low stock

    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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    $40.00
    $40.00 - $40.00
    $40.00
    $28.99
    $28.99 - $28.99
    $28.99
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    GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1250-W]

    GROCO
    $84.00
    $84.00 - $84.00
    $84.00
    $60.99
    $60.99 - $60.99
    $60.99
    In stock

    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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    $84.00
    $84.00 - $84.00
    $84.00
    $60.99
    $60.99 - $60.99
    $60.99
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    GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1500-WS]

    GROCO
    $70.00
    $70.00 - $70.00
    $70.00
    $50.99
    $50.99 - $50.99
    $50.99
    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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    $70.00
    $70.00 - $70.00
    $70.00
    $50.99
    $50.99 - $50.99
    $50.99
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  • Save 53% Save %

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

    Perko
    $141.26
    $141.26 - $141.26
    $141.26
    $66.99
    $66.99 - $66.99
    $66.99
    In stock

    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
    $141.26 - $141.26
    $141.26
    $66.99
    $66.99 - $66.99
    $66.99
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  • Save 25% Save %

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

    GROCO
    $32.00
    $32.00 - $32.00
    $32.00
    $23.99
    $23.99 - $23.99
    $23.99
    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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    $32.00
    $32.00 - $32.00
    $32.00
    $23.99
    $23.99 - $23.99
    $23.99
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  • Save 33% Save %

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

    GROCO
    $96.00
    $96.00 - $96.00
    $96.00
    $63.99
    $63.99 - $63.99
    $63.99
    In stock

    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
    $96.00 - $96.00
    $96.00
    $63.99
    $63.99 - $63.99
    $63.99
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  • Save 43% Save %

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

    Perko
    $118.72
    $118.72 - $118.72
    $118.72
    $67.99
    $67.99 - $67.99
    $67.99
    Low stock

    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
    $118.72 - $118.72
    $118.72
    $67.99
    $67.99 - $67.99
    $67.99
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  • Save 46% Save %

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

    Perko
    $109.63
    $109.63 - $109.63
    $109.63
    $58.99
    $58.99 - $58.99
    $58.99
    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
    $109.63 - $109.63
    $109.63
    $58.99
    $58.99 - $58.99
    $58.99
    Save 46% Save %
  • Save 27% Save %

    GROCO 1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-1000-WS]

    GROCO
    $64.00
    $64.00 - $64.00
    $64.00
    $46.99
    $46.99 - $46.99
    $46.99
    In stock

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

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    $64.00
    $64.00 - $64.00
    $64.00
    $46.99
    $46.99 - $46.99
    $46.99
    Save 27% Save %
  • Save 28% Save %

    GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

    GROCO
    $90.00
    $90.00 - $90.00
    $90.00
    $64.99
    $64.99 - $64.99
    $64.99
    In stock

    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/...

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    $90.00
    $90.00 - $90.00
    $90.00
    $64.99
    $64.99 - $64.99
    $64.99
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    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

    GROCO
    $34.00
    $34.00 - $34.00
    $34.00
    $24.99
    $24.99 - $24.99
    $24.99
    In stock

    Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: ...

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    $34.00
    $34.00 - $34.00
    $34.00
    $24.99
    $24.99 - $24.99
    $24.99
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    GROCO 1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-500-WS]

    GROCO
    $22.00
    $22.00 - $22.00
    $22.00
    $15.99
    $15.99 - $15.99
    $15.99
    In stock

    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" UL...

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    $22.00
    $22.00 - $22.00
    $22.00
    $15.99
    $15.99 - $15.99
    $15.99
    Save 27% Save %
  • Save 34% Save %

    Perko 1/2" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4]

    Perko
    $7.57
    $7.57 - $7.57
    $7.57
    $4.99
    $4.99 - $4.99
    $4.99
    In stock

    Perko 1/2" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1/2 Mounting Hole Diamete...

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    $7.57
    $7.57 - $7.57
    $7.57
    $4.99
    $4.99 - $4.99
    $4.99
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  • Save 33% Save %

    GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]

    GROCO
    $166.00
    $166.00 - $166.00
    $166.00
    $110.99
    $110.99 - $110.99
    $110.99
    In stock

    2" 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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    $166.00
    $166.00 - $166.00
    $166.00
    $110.99
    $110.99 - $110.99
    $110.99
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