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Marine Plumbing & Ventilation - Thru-Hull Fittings

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  • Save $12.05 Save $0.00

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

    GROCO
    $41.00
    $41.00 - $41.00
    $41.00
    $28.95
    $28.95 - $28.95
    $28.95

    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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    $41.00
    $41.00 - $41.00
    $41.00
    $28.95
    $28.95 - $28.95
    $28.95
    Save $12.05 Save $0.00
  • Save $17.05 Save $0.00

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

    GROCO
    $56.00
    $56.00 - $56.00
    $56.00
    $38.95
    $38.95 - $38.95
    $38.95

    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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    $56.00
    $56.00 - $56.00
    $56.00
    $38.95
    $38.95 - $38.95
    $38.95
    Save $17.05 Save $0.00
  • Save $50.05 Save $0.00

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

    GROCO
    $166.00
    $166.00 - $166.00
    $166.00
    $115.95
    $115.95 - $115.95
    $115.95

    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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    $166.00
    $166.00 - $166.00
    $166.00
    $115.95
    $115.95 - $115.95
    $115.95
    Save $50.05 Save $0.00
  • Save $101.05 Save $0.00

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

    GROCO
    $332.00
    $332.00 - $332.00
    $332.00
    $230.95
    $230.95 - $230.95
    $230.95

    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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    $332.00
    $332.00 - $332.00
    $332.00
    $230.95
    $230.95 - $230.95
    $230.95
    Save $101.05 Save $0.00
  • Save $32.05 Save $0.00

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

    GROCO
    $107.00
    $107.00 - $107.00
    $107.00
    $74.95
    $74.95 - $74.95
    $74.95

    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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    $107.00
    $107.00 - $107.00
    $107.00
    $74.95
    $74.95 - $74.95
    $74.95
    Save $32.05 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
    $34.00
    $34.00 - $34.00
    $34.00
    $23.95
    $23.95 - $23.95
    $23.95

    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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    $34.00
    $34.00 - $34.00
    $34.00
    $23.95
    $23.95 - $23.95
    $23.95
    Save $10.05 Save $0.00
  • Save $18.05 Save $0.00

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

    GROCO
    $61.00
    $61.00 - $61.00
    $61.00
    $42.95
    $42.95 - $42.95
    $42.95

    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
    $61.00 - $61.00
    $61.00
    $42.95
    $42.95 - $42.95
    $42.95
    Save $18.05 Save $0.00
  • Save $26.05 Save $0.00

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

    GROCO
    $86.00
    $86.00 - $86.00
    $86.00
    $59.95
    $59.95 - $59.95
    $59.95

    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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    $86.00
    $86.00 - $86.00
    $86.00
    $59.95
    $59.95 - $59.95
    $59.95
    Save $26.05 Save $0.00
  • Save $7.05 Save $0.00

    GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-750-W]

    GROCO
    $23.00
    $23.00 - $23.00
    $23.00
    $15.95
    $15.95 - $15.95
    $15.95

    3/4" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Ava...

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    $23.00
    $23.00 - $23.00
    $23.00
    $15.95
    $15.95 - $15.95
    $15.95
    Save $7.05 Save $0.00
  • Save $7.05 Save $0.00

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

    GROCO
    $23.00
    $23.00 - $23.00
    $23.00
    $15.95
    $15.95 - $15.95
    $15.95

    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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    $23.00
    $23.00 - $23.00
    $23.00
    $15.95
    $15.95 - $15.95
    $15.95
    Save $7.05 Save $0.00
  • Save $58.37 Save $0.00

    Perko 1-1/8" Thru-Hull Fitting f/ Hose Chrome Plated Bronze Made in the USA [035006ADPC]

    Perko
    $113.32
    $113.32 - $113.32
    $113.32
    $54.95
    $54.95 - $54.95
    $54.95

    Perko 1-1/8" 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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    $113.32
    $113.32 - $113.32
    $113.32
    $54.95
    $54.95 - $54.95
    $54.95
    Save $58.37 Save $0.00
  • Save $12.62 Save $0.00

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

    Perko
    $17.57
    $17.57 - $17.57
    $17.57
    $4.95
    $4.95 - $4.95
    $4.95

    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
    $17.57 - $17.57
    $17.57
    $4.95
    $4.95 - $4.95
    $4.95
    Save $12.62 Save $0.00
  • Save $11.24 Save $0.00

    Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6]

    Perko
    $16.19
    $16.19 - $16.19
    $16.19
    $4.95
    $4.95 - $4.95
    $4.95

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

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    $16.19
    $16.19 - $16.19
    $16.19
    $4.95
    $4.95 - $4.95
    $4.95
    Save $11.24 Save $0.00
  • Save $26.21 Save $0.00

    Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP2PLB]

    Perko
    $62.16
    $62.16 - $62.16
    $62.16
    $35.95
    $35.95 - $35.95
    $35.95

    Perko 5" X 3-1/4" Scoop Strainer BronzeCast bronzeMachine slotsTechnical Information: For Thru-Hull Size Inches: 3/4 & 1 Dimensions Strainer ...

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    $62.16
    $62.16 - $62.16
    $62.16
    $35.95
    $35.95 - $35.95
    $35.95
    Save $26.21 Save $0.00
  • Save $70.05 Save $0.00

    GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]

    GROCO
    $231.00
    $231.00 - $231.00
    $231.00
    $160.95
    $160.95 - $160.95
    $160.95

    2-1/2" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 2-1/2" GROCO thru-hull fitting than conventional thru-hulls.Featu...

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    $231.00
    $231.00 - $231.00
    $231.00
    $160.95
    $160.95 - $160.95
    $160.95
    Save $70.05 Save $0.00
  • Save $20.05 Save $0.00

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

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

    1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / N...

    View full details
    $66.00
    $66.00 - $66.00
    $66.00
    $45.95
    $45.95 - $45.95
    $45.95
    Save $20.05 Save $0.00
  • Save $31.05 Save $0.00

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

    GROCO
    $104.00
    $104.00 - $104.00
    $104.00
    $72.95
    $72.95 - $72.95
    $72.95

    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...

    View full details
    $104.00
    $104.00 - $104.00
    $104.00
    $72.95
    $72.95 - $72.95
    $72.95
    Save $31.05 Save $0.00
  • Save $26.05 Save $0.00

    GROCO 2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut [THXL-2000-WS]

    GROCO
    $86.00
    $86.00 - $86.00
    $86.00
    $59.95
    $59.95 - $59.95
    $59.95

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

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    $86.00
    $86.00 - $86.00
    $86.00
    $59.95
    $59.95 - $59.95
    $59.95
    Save $26.05 Save $0.00
  • Save $10.05 Save $0.00

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

    GROCO
    $33.00
    $33.00 - $33.00
    $33.00
    $22.95
    $22.95 - $22.95
    $22.95

    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...

    View full details
    $33.00
    $33.00 - $33.00
    $33.00
    $22.95
    $22.95 - $22.95
    $22.95
    Save $10.05 Save $0.00
  • Save $11.04 Save $0.00

    Attwood Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter [66545-3]

    Attwood Marine
    $61.99
    $61.99 - $61.99
    $61.99
    $50.95
    $50.95 - $50.95
    $50.95

    Stainless Steel Thru-Hull Short Straight Barbed - 1-1/2" Inner Diameter Polish your image with these beautiful, durable stainless steel fittings. ...

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    $61.99
    $61.99 - $61.99
    $61.99
    $50.95
    $50.95 - $50.95
    $50.95
    Save $11.04 Save $0.00
  • Save $20.88 Save $0.00

    Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

    Attwood Marine
    $102.83
    $102.83 - $102.83
    $102.83
    $81.95
    $81.95 - $81.95
    $81.95

    Stainless Steel Scupper Valve Barbed - 1-1/2" Hose SizePolish your image with these beautiful, durable stainless steel fittings. Why specify plast...

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    $102.83
    $102.83 - $102.83
    $102.83
    $81.95
    $81.95 - $81.95
    $81.95
    Save $20.88 Save $0.00
  • Save $40.05 Save $0.00

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

    GROCO
    $131.00
    $131.00 - $131.00
    $131.00
    $90.95
    $90.95 - $90.95
    $90.95

    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...

    View full details
    $131.00
    $131.00 - $131.00
    $131.00
    $90.95
    $90.95 - $90.95
    $90.95
    Save $40.05 Save $0.00
  • Save $4.11 Save $0.00

    Perko 3/4" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP5]

    Perko
    $8.06
    $8.06 - $8.06
    $8.06
    $3.95
    $3.95 - $3.95
    $3.95

    Perko 3/4" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 3/4 Mounting Hole Diamete...

    View full details
    $8.06
    $8.06 - $8.06
    $8.06
    $3.95
    $3.95 - $3.95
    $3.95
    Save $4.11 Save $0.00
  • Save $34.81 Save $0.00

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

    Perko
    $66.76
    $66.76 - $66.76
    $66.76
    $31.95
    $31.95 - $31.95
    $31.95

    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
    $31.95
    $31.95 - $31.95
    $31.95
    Save $34.81 Save $0.00
  • Save $8.33 Save $0.00

    Attwood Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner Diameter [66549-3]

    Attwood Marine
    $42.28
    $42.28 - $42.28
    $42.28
    $33.95
    $33.95 - $33.95
    $33.95

    Stainless Steel Thru-Hull Standard Straight Barbed - 1-1/8" Inner DiameterPolish your image with these beautiful, durable stainless steel fittings...

    View full details
    $42.28
    $42.28 - $42.28
    $42.28
    $33.95
    $33.95 - $33.95
    $33.95
    Save $8.33 Save $0.00

  • T-M Marine 90-Degree Cockpit Scupper Drain - White [CSD-92-DP]

    T-H Marine Supplies
    $0.00 - $0.00
    $0.00
    $65.16
    $65.16 - $65.16
    $65.16

    90-Degree Cockpit Scupper Drain - WhiteThis cockpit scupper drain is an affordable and durable solution for draining areas below the waterline. Ma...

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    $0.00 - $0.00
    $0.00
    $65.16
    $65.16 - $65.16
    $65.16
  • Save $25.05 Save $0.00

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]

    GROCO
    $85.00
    $85.00 - $85.00
    $85.00
    $59.95
    $59.95 - $59.95
    $59.95

    Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications...

    View full details
    $85.00
    $85.00 - $85.00
    $85.00
    $59.95
    $59.95 - $59.95
    $59.95
    Save $25.05 Save $0.00
  • Save $10.05 Save $0.00

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

    GROCO
    $33.00
    $33.00 - $33.00
    $33.00
    $22.95
    $22.95 - $22.95
    $22.95

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

    View full details
    $33.00
    $33.00 - $33.00
    $33.00
    $22.95
    $22.95 - $22.95
    $22.95
    Save $10.05 Save $0.00
  • Save $29.05 Save $0.00

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

    GROCO
    $95.00
    $95.00 - $95.00
    $95.00
    $65.95
    $65.95 - $65.95
    $65.95

    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 L...

    View full details
    $95.00
    $95.00 - $95.00
    $95.00
    $65.95
    $65.95 - $65.95
    $65.95
    Save $29.05 Save $0.00
  • Save $31.61 Save $0.00

    Perko 6-1/4" x 4-1/4" Scoop Strainer Bronze MADE IN THE USA [0066DP3PLB]

    Perko
    $82.56
    $82.56 - $82.56
    $82.56
    $50.95
    $50.95 - $50.95
    $50.95

    6-1/4" X 4-1/4" Scoop Strainer BronzeFeatures: Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 1-1/4 & 1-1/2 Dimen...

    View full details
    $82.56
    $82.56 - $82.56
    $82.56
    $50.95
    $50.95 - $50.95
    $50.95
    Save $31.61 Save $0.00
  • Save $12.05 Save $0.00

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

    GROCO
    $42.00
    $42.00 - $42.00
    $42.00
    $29.95
    $29.95 - $29.95
    $29.95

    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...

    View full details
    $42.00
    $42.00 - $42.00
    $42.00
    $29.95
    $29.95 - $29.95
    $29.95
    Save $12.05 Save $0.00
  • Save $31.05 Save $0.00

    GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2" [HTH-2000-S]

    GROCO
    $104.00
    $104.00 - $104.00
    $104.00
    $72.95
    $72.95 - $72.95
    $72.95

    Stainless Steel Hose Barb Thru-Hull Fitting - 2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Ho...

    View full details
    $104.00
    $104.00 - $104.00
    $104.00
    $72.95
    $72.95 - $72.95
    $72.95
    Save $31.05 Save $0.00
  • Save $6.05 Save $0.00

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

    GROCO
    $22.00
    $22.00 - $22.00
    $22.00
    $15.95
    $15.95 - $15.95
    $15.95

    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...

    View full details
    $22.00
    $22.00 - $22.00
    $22.00
    $15.95
    $15.95 - $15.95
    $15.95
    Save $6.05 Save $0.00
  • Save $21.05 Save $0.00

    GROCO 1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1500-W]

    GROCO
    $71.00
    $71.00 - $71.00
    $71.00
    $49.95
    $49.95 - $49.95
    $49.95

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

    View full details
    $71.00
    $71.00 - $71.00
    $71.00
    $49.95
    $49.95 - $49.95
    $49.95
    Save $21.05 Save $0.00
  • Save $32.05 Save $0.00

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

    GROCO
    $107.00
    $107.00 - $107.00
    $107.00
    $74.95
    $74.95 - $74.95
    $74.95

    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 Avail...

    View full details
    $107.00
    $107.00 - $107.00
    $107.00
    $74.95
    $74.95 - $74.95
    $74.95
    Save $32.05 Save $0.00