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Marine Plumbing & Ventilation - Thru-Hull Fittings

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

    GROCO
    $149.00
    $149.00 - $149.00
    $149.00
    $103.95
    $103.95 - $103.95
    $103.95

    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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    $149.00
    $149.00 - $149.00
    $149.00
    $103.95
    $103.95 - $103.95
    $103.95
    Save $45.05 Save $0.00
  • Save $20.05 Save $0.00

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

    GROCO
    $66.00
    $66.00 - $66.00
    $66.00
    $45.95
    $45.95 - $45.95
    $45.95

    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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    $66.00
    $66.00 - $66.00
    $66.00
    $45.95
    $45.95 - $45.95
    $45.95
    Save $20.05 Save $0.00
  • Save $11.05 Save $0.00

    GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1000-W]

    GROCO
    $37.00
    $37.00 - $37.00
    $37.00
    $25.95
    $25.95 - $25.95
    $25.95

    1" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Avail...

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    $37.00
    $37.00 - $37.00
    $37.00
    $25.95
    $25.95 - $25.95
    $25.95
    Save $11.05 Save $0.00
  • Save $29.05 Save $0.00

    GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-1250-W]

    GROCO
    $97.00
    $97.00 - $97.00
    $97.00
    $67.95
    $67.95 - $67.95
    $67.95

    1-1/4" 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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    $97.00
    $97.00 - $97.00
    $97.00
    $67.95
    $67.95 - $67.95
    $67.95
    Save $29.05 Save $0.00
  • Save $35.05 Save $0.00

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

    GROCO
    $117.00
    $117.00 - $117.00
    $117.00
    $81.95
    $81.95 - $81.95
    $81.95

    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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    $117.00
    $117.00 - $117.00
    $117.00
    $81.95
    $81.95 - $81.95
    $81.95
    Save $35.05 Save $0.00
  • Save $7.05 Save $0.00

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

    GROCO
    $26.00
    $26.00 - $26.00
    $26.00
    $18.95
    $18.95 - $18.95
    $18.95

    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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    $26.00
    $26.00 - $26.00
    $26.00
    $18.95
    $18.95 - $18.95
    $18.95
    Save $7.05 Save $0.00
  • Save $14.05 Save $0.00

    GROCO 3/4" Bronze Combo Scoop Thru-Hull w/Nut [STH-750-W]

    GROCO
    $49.00
    $49.00 - $49.00
    $49.00
    $34.95
    $34.95 - $34.95
    $34.95

    3/4" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600...

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    $49.00
    $49.00 - $49.00
    $49.00
    $34.95
    $34.95 - $34.95
    $34.95
    Save $14.05 Save $0.00
  • Save $107.98 Save $0.00

    Perko 1-1/2" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [0350008DPC]

    Perko
    $189.93
    $189.93 - $189.93
    $189.93
    $81.95
    $81.95 - $81.95
    $81.95

    Perko 1-1/2" Thru-Hull Connection f/ use with Hose Chrome Plated BronzeFlange is machined to fit and grooved to retain bedding compound neck isthr...

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    $189.93
    $189.93 - $189.93
    $189.93
    $81.95
    $81.95 - $81.95
    $81.95
    Save $107.98 Save $0.00
  • Save $54.68 Save $0.00

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

    Perko
    $109.63
    $109.63 - $109.63
    $109.63
    $54.95
    $54.95 - $54.95
    $54.95

    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
    $54.95
    $54.95 - $54.95
    $54.95
    Save $54.68 Save $0.00
  • Save $58.93 Save $0.00

    Perko 1-1/4" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP7PLB]

    Perko
    $122.88
    $122.88 - $122.88
    $122.88
    $63.95
    $63.95 - $63.95
    $63.95

    Perko 1-1/4" Thru-Hull Fitting w/ Pipe Thread BronzeFlange is machined to fit hull and grooved to retain bedding compound. Neckis threaded to app...

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    $122.88
    $122.88 - $122.88
    $122.88
    $63.95
    $63.95 - $63.95
    $63.95
    Save $58.93 Save $0.00
  • Save $14.05 Save $0.00

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

    GROCO
    $47.00
    $47.00 - $47.00
    $47.00
    $32.95
    $32.95 - $32.95
    $32.95

    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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    $47.00
    $47.00 - $47.00
    $47.00
    $32.95
    $32.95 - $32.95
    $32.95
    Save $14.05 Save $0.00
  • Save $50.77 Save $0.00

    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
    $67.95
    $67.95 - $67.95
    $67.95

    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
    $67.95
    $67.95 - $67.95
    $67.95
    Save $50.77 Save $0.00
  • Save $18.05 Save $0.00

    GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]

    GROCO
    $60.00
    $60.00 - $60.00
    $60.00
    $41.95
    $41.95 - $41.95
    $41.95

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

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    $60.00
    $60.00 - $60.00
    $60.00
    $41.95
    $41.95 - $41.95
    $41.95
    Save $18.05 Save $0.00
  • Save $24.05 Save $0.00

    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
    $54.95
    $54.95 - $54.95
    $54.95

    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
    $54.95
    $54.95 - $54.95
    $54.95
    Save $24.05 Save $0.00
  • Save $20.05 Save $0.00

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

    GROCO
    $67.00
    $67.00 - $67.00
    $67.00
    $46.95
    $46.95 - $46.95
    $46.95

    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" ...

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    $67.00
    $67.00 - $67.00
    $67.00
    $46.95
    $46.95 - $46.95
    $46.95
    Save $20.05 Save $0.00
  • Save $21.01 Save $0.00

    Perko 1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322DP4PLB]

    Perko
    $51.96
    $51.96 - $51.96
    $51.96
    $30.95
    $30.95 - $30.95
    $30.95

    Perko 1/2" 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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    $51.96
    $51.96 - $51.96
    $51.96
    $30.95
    $30.95 - $30.95
    $30.95
    Save $21.01 Save $0.00
  • Save $63.05 Save $0.00

    GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting [HTHC-1500-S]

    GROCO
    $208.00
    $208.00 - $208.00
    $208.00
    $144.95
    $144.95 - $144.95
    $144.95

    1-1/2" 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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    $208.00
    $208.00 - $208.00
    $208.00
    $144.95
    $144.95 - $144.95
    $144.95
    Save $63.05 Save $0.00
  • Save $20.05 Save $0.00

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

    GROCO
    $68.00
    $68.00 - $68.00
    $68.00
    $47.95
    $47.95 - $47.95
    $47.95

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

    View full details
    $68.00
    $68.00 - $68.00
    $68.00
    $47.95
    $47.95 - $47.95
    $47.95
    Save $20.05 Save $0.00
  • Save $18.05 Save $0.00

    GROCO 3/4" 90 Degree Hose Thru-Hull Fitting [HTHC-750-S]

    GROCO
    $60.00
    $60.00 - $60.00
    $60.00
    $41.95
    $41.95 - $41.95
    $41.95

    3/4" 90 Degree Hose Thru-Hull Fitting Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Specific...

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    $60.00
    $60.00 - $60.00
    $60.00
    $41.95
    $41.95 - $41.95
    $41.95
    Save $18.05 Save $0.00
  • Save $55.05 Save $0.00

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

    GROCO
    $183.00
    $183.00 - $183.00
    $183.00
    $127.95
    $127.95 - $127.95
    $127.95

    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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    $183.00
    $183.00 - $183.00
    $183.00
    $127.95
    $127.95 - $127.95
    $127.95
    Save $55.05 Save $0.00
  • Save $111.05 Save $0.00

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

    GROCO
    $365.00
    $365.00 - $365.00
    $365.00
    $253.95
    $253.95 - $253.95
    $253.95

    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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    $365.00
    $365.00 - $365.00
    $365.00
    $253.95
    $253.95 - $253.95
    $253.95
    Save $111.05 Save $0.00
  • Save $37.05 Save $0.00

    GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]

    GROCO
    $122.00
    $122.00 - $122.00
    $122.00
    $84.95
    $84.95 - $84.95
    $84.95

    2" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT c...

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    $122.00
    $122.00 - $122.00
    $122.00
    $84.95
    $84.95 - $84.95
    $84.95
    Save $37.05 Save $0.00
  • Save $13.05 Save $0.00

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

    GROCO
    $43.00
    $43.00 - $43.00
    $43.00
    $29.95
    $29.95 - $29.95
    $29.95

    Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications...

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    $43.00
    $43.00 - $43.00
    $43.00
    $29.95
    $29.95 - $29.95
    $29.95
    Save $13.05 Save $0.00
  • Save $10.05 Save $0.00

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

    GROCO
    $35.00
    $35.00 - $35.00
    $35.00
    $24.95
    $24.95 - $24.95
    $24.95

    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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    $35.00
    $35.00 - $35.00
    $35.00
    $24.95
    $24.95 - $24.95
    $24.95
    Save $10.05 Save $0.00