Skip to content
ALL MERCURY AND YAMAHA POWERHEADS AND LOWER UNITS NOW CARRY 24 MONTH WARRANTIES AT NO ADDITIONAL COST!
ALL MERCURY AND YAMAHA POWERHEADS AND LOWER UNITS NOW CARRY 24 MONTH WARRANTIES AT NO ADDITIONAL COST!

Marine Plumbing & Ventilation - Fittings

  • GROCO 3/4" NPT Bronze 3-Way Valve [TWV-750]

    GROCO
    Original price $69.00
    Original price $69.00 - Original price $69.00
    Original price $69.00
    Current price $49.99
    $49.99 - $49.99
    Current price $49.99
    Low stock

    3/4" NPT Bronze 3-Way Valve Features: 3-way valve operates logically - The handle points to the direction of flow Center position is "off" Handle ...

    View full details
    Original price $69.00
    Original price $69.00 - Original price $69.00
    Original price $69.00
    Current price $49.99
    $49.99 - $49.99
    Current price $49.99
    Save 28% Save %
  • GROCO 1-1/2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-1500]

    GROCO
    Original price $205.00
    Original price $205.00 - Original price $205.00
    Original price $205.00
    Current price $136.99
    $136.99 - $136.99
    Current price $136.99
    Low stock

    1-1/2" Bronze Tri-Flanged Ball Valve/SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the v...

    View full details
    Original price $205.00
    Original price $205.00 - Original price $205.00
    Original price $205.00
    Current price $136.99
    $136.99 - $136.99
    Current price $136.99
    Save 33% Save %
  • GROCO 1/2" 4-Port Tank Selector Valve [FV-450-X]

    GROCO
    Original price $138.00
    Original price $138.00 - Original price $138.00
    Original price $138.00
    Current price $91.99
    $91.99 - $91.99
    Current price $91.99
    Low stock

    1/2" 4-Port Tank Selector ValveFeatures: For fuel or water Four Positions: Tank-1, Tank-2, Tanks 1 & 2, Off Full 1/2” flow Audible “click” at ...

    View full details
    Original price $138.00
    Original price $138.00 - Original price $138.00
    Original price $138.00
    Current price $91.99
    $91.99 - $91.99
    Current price $91.99
    Save 33% Save %
  • GROCO 1" NPT Bronze 45 Degree Pipe to 1" Hose [PTHD-1000]

    GROCO
    Original price $22.00
    Original price $22.00 - Original price $22.00
    Original price $22.00
    Current price $15.99
    $15.99 - $15.99
    Current price $15.99
    In stock

    1" NPT Bronze 45 Degree Pipe to 1" Hose Features: 45 degree Male NPT x Hose connection C83600 Bronze Standard Flow UL Listed 647B Note- C83600 bro...

    View full details
    Original price $22.00
    Original price $22.00 - Original price $22.00
    Original price $22.00
    Current price $15.99
    $15.99 - $15.99
    Current price $15.99
    Save 27% Save %
  • GROCO 1-1/4" NPT Bronze In-Line Ball Valve [IBV-1250]

    GROCO
    Original price $108.00
    Original price $108.00 - Original price $108.00
    Original price $108.00
    Current price $71.99
    $71.99 - $71.99
    Current price $71.99
    Low stock

    1-1/4" NPT Bronze In-Line Ball ValveFeatures: Female NPT Threads 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only w...

    View full details
    Original price $108.00
    Original price $108.00 - Original price $108.00
    Original price $108.00
    Current price $71.99
    $71.99 - $71.99
    Current price $71.99
    Save 33% Save %
  • GROCO 3/4" Bronze NPS to NPT Flange Adapter [IBVF-750]

    GROCO
    Original price $64.00
    Original price $64.00 - Original price $64.00
    Original price $64.00
    Current price $46.99
    $46.99 - $46.99
    Current price $46.99
    Low stock

    3/4" Bronze NPS to NPT Flange AdapterIBVF Flanged Adapters have been developed to address several common problems in the marine industry.  Feature...

    View full details
    Original price $64.00
    Original price $64.00 - Original price $64.00
    Original price $64.00
    Current price $46.99
    $46.99 - $46.99
    Current price $46.99
    Save 27% Save %
  • Perko Gas Tank Vent w/Swivel Elbow - Chrome/Black [0561DP4CHR]

    Perko
    Original price $27.64
    Original price $27.64 - Original price $27.64
    Original price $27.64
    Current price $19.99
    $19.99 - $19.99
    Current price $19.99
    In stock

    Gas Tank Vent w/Swivel Elbow - Chrome/BlackFeatures: Chrome Plated Zinc Alloy Cap with Zinc Alloy Elbow Black or White Polymer Splash Guards ...

    View full details
    Original price $27.64
    Original price $27.64 - Original price $27.64
    Original price $27.64
    Current price $19.99
    $19.99 - $19.99
    Current price $19.99
    Save 28% Save %
  • Perko Flush Pro Valve Kit - 1-1/4" [0457DP7]

    Perko
    Original price $276.69
    Original price $276.69 - Original price $276.69
    Original price $276.69
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99
    Low stock

    Flush Pro Valve Kit - 1-1/4"Finally! Freshwater flushing of your inboard is as simple as connecting a garden hose.Features: Polymer Stainless St...

    View full details
    Original price $276.69
    Original price $276.69 - Original price $276.69
    Original price $276.69
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99
    Save 27% Save %
  • Perko 0582 Style Replacement Cap w/Inserts [0582DPS99A]

    Perko
    Original price $74.45
    Original price $74.45 - Original price $74.45
    Original price $74.45
    Current price $54.99
    $54.99 - $54.99
    Current price $54.99
    In stock

    0582 Style Replacement Cap with Inserts Replacement cap for fuel systems. Includes inserts - Gas - Diesel - Water Features: Scalloped Stainless St...

    View full details
    Original price $74.45
    Original price $74.45 - Original price $74.45
    Original price $74.45
    Current price $54.99
    $54.99 - $54.99
    Current price $54.99
    Save 26% Save %
  • Perko Cover Bolt Complete Sizes 4 5 [0493DP599L]

    Perko
    Original price $39.41
    Original price $39.41 - Original price $39.41
    Original price $39.41
    Current price $27.99
    $27.99 - $27.99
    Current price $27.99
    Low stock

    Cover Bolt Complete Sizes 4 & 5Cover Bolt Only (Size 4 and 5) for Intake Water Strainer.Intake Water Strainers are designed for easy installat...

    View full details
    Original price $39.41
    Original price $39.41 - Original price $39.41
    Original price $39.41
    Current price $27.99
    $27.99 - $27.99
    Current price $27.99
    Save 29% Save %
  • Perko 0543 Vented Fill f/1-1/2" Hose - Straight Neck - Gas - Black [0543DPGBLK]

    Perko
    Original price $55.11
    Original price $55.11 - Original price $55.11
    Original price $55.11
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99
    In stock

    0543 Vented Fill f/1-1/2" Hose - Straight Neck - Gas - BlackBlack Polymer Cap with Black Polymer Body Black Polymer Strap Integral Tank Vent with ...

    View full details
    Original price $55.11
    Original price $55.11 - Original price $55.11
    Original price $55.11
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99
    Save 29% Save %
  • Perko 0540 Spare Cap w/Chain [0540DPG99A]

    Perko
    Original price $72.55
    Original price $72.55 - Original price $72.55
    Original price $72.55
    Current price $50.99
    $50.99 - $50.99
    Current price $50.99
    In stock

    0540 Spare CapPerko's 0540 spare gas cap with chain

    Original price $72.55
    Original price $72.55 - Original price $72.55
    Original price $72.55
    Current price $50.99
    $50.99 - $50.99
    Current price $50.99
    Save 30% Save %
  • Raritan Diverter Y Valve w/Fittings [DV11]

    Raritan
    Original price $140.00
    Original price $140.00 - Original price $140.00
    Original price $140.00
    Current price $97.99
    $97.99 - $97.99
    Current price $97.99
    Low stock

    Diverter Y Valve with FittingsRaritan’s Diverter Y-Valve allows for easy installation as it can be configured using any port as input. Port connec...

    View full details
    Original price $140.00
    Original price $140.00 - Original price $140.00
    Original price $140.00
    Current price $97.99
    $97.99 - $97.99
    Current price $97.99
    Save 30% Save %
  • Shurflo by Pentair Pressure Reducing City Water Entry - In-Line - Cream [183-039-08]

    Shurflo by Pentair
    Original price $74.25
    Original price $74.25 - Original price $74.25
    Original price $74.25
    Current price $51.99
    $51.99 - $51.99
    Current price $51.99
    In stock

    Pressure Reducing City Water Entry - In-Line - CreamThis combination pressure reducing city water entry and check valve diaphragm design prevents...

    View full details
    Original price $74.25
    Original price $74.25 - Original price $74.25
    Original price $74.25
    Current price $51.99
    $51.99 - $51.99
    Current price $51.99
    Save 30% Save %
  • Perko Cover Bolt Complete Sizes 8, 9 10 [0493DP999L]

    Perko
    Original price $55.88
    Original price $55.88 - Original price $55.88
    Original price $55.88
    Current price $39.99
    $39.99 - $39.99
    Current price $39.99
    Low stock

    Cover Bolt Complete Sizes 8, 9 & 10Cover Bolt Only (Size 8, 9 and 10) for Intake Water Strainer.Intake Water Strainers are designed for easy i...

    View full details
    Original price $55.88
    Original price $55.88 - Original price $55.88
    Original price $55.88
    Current price $39.99
    $39.99 - $39.99
    Current price $39.99
    Save 28% Save %
  • Perko Garboard Drain Plus w/Steel Wrench [0124000PLB]

    Perko
    Original price $160.88
    Original price $160.88 - Original price $160.88
    Original price $160.88
    Current price $110.99
    $110.99 - $110.99
    Current price $110.99
    Low stock

    Garboard Drain Plus with Steel WrenchComplete with Zinc Plated Steel Wrench. Specifications: Cast Bronze Flange Brass Plug Complete with Zinc Plat...

    View full details
    Original price $160.88
    Original price $160.88 - Original price $160.88
    Original price $160.88
    Current price $110.99
    $110.99 - $110.99
    Current price $110.99
    Save 31% Save %
  • Perko 0540 Gas Fill/Vent f/1-1/2" Hose - Angled Neck [0540DPGCHR]

    Perko
    Original price $84.58
    Original price $84.58 - Original price $84.58
    Original price $84.58
    Current price $59.99
    $59.99 - $59.99
    Current price $59.99
    In stock

    0540 Gas Fill/Vent for 1-1/2" Hose - Angled NeckFeatures: Angled Neck Chrome Plated Bronze Cap Black Polymer Body Stainless Steel Bead Chain I...

    View full details
    Original price $84.58
    Original price $84.58 - Original price $84.58
    Original price $84.58
    Current price $59.99
    $59.99 - $59.99
    Current price $59.99
    Save 29% Save %
  • T-H Marine Double Barb Inline Scupper Check Valve - 1-1/8" - Black [ILS-1200-DP]

    T-H Marine Supplies
    Original price $27.99
    Original price $27.99 - Original price $27.99
    Original price $27.99
    Current price $21.99
    $21.99 - $21.99
    Current price $21.99
    In stock

    Double Barb Inline Scupper Check Valve - 1-1/8" - BlackA great solution to provide a scupper check valve in the drain line.  Allows use of standar...

    View full details
    Original price $27.99
    Original price $27.99 - Original price $27.99
    Original price $27.99
    Current price $21.99
    $21.99 - $21.99
    Current price $21.99
    Save 21% Save %
  • GROCO 3/4" NPT Bronze Inline Fuel Valve [FV-750]

    GROCO
    Original price $53.00
    Original price $53.00 - Original price $53.00
    Original price $53.00
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99
    Low stock

    3/4" NPT Bronze Inline Fuel ValveFeatures: Selectable handle rotation Full flow Mount foot included C83600 bronze construction Stainless steel han...

    View full details
    Original price $53.00
    Original price $53.00 - Original price $53.00
    Original price $53.00
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99
    Save 26% Save %
  • Johnson Pump Bulkhead Fitting 3/4" Hose [09-10616]

    Johnson Pump
    Original price $50.24
    Original price $50.24 - Original price $50.24
    Original price $50.24
    Current price $32.99
    $32.99 - $32.99
    Current price $32.99
    In stock

    Bulkhead FittingPart #: 09-10616Johnson Bulkhead Fitting for 3/4" hose

    Original price $50.24
    Original price $50.24 - Original price $50.24
    Original price $50.24
    Current price $32.99
    $32.99 - $32.99
    Current price $32.99
    Save 34% Save %
  • Beckson 1" Drain Plug Screw Type w/Gasket - Black [DP10-B]

    Beckson Marine
    Original price $8.10
    Original price $8.10 - Original price $8.10
    Original price $8.10
    Current price $5.99
    $5.99 - $5.99
    Current price $5.99
    Low stock

    Beckson Screw Type 1" Drain PlugScrew-type drain plug with patented self-cleaning thread design, O-ring, and super strength center retaining legs ...

    View full details
    Original price $8.10
    Original price $8.10 - Original price $8.10
    Original price $8.10
    Current price $5.99
    $5.99 - $5.99
    Current price $5.99
    Save 26% Save %
  • Perko 0541Vented Fill f/1-1/2" Hose - Straight Neck - Gas [0541DPGCHR]

    Perko
    Original price $84.58
    Original price $84.58 - Original price $84.58
    Original price $84.58
    Current price $59.99
    $59.99 - $59.99
    Current price $59.99
    In stock

    0541 Vented Fill f/1-1/2" Hose - Straight Neck - Gas Straight Neck Chrome Plated Bronze Cap Black Polymer Body Stainless Steel Bead Chain Integral...

    View full details
    Original price $84.58
    Original price $84.58 - Original price $84.58
    Original price $84.58
    Current price $59.99
    $59.99 - $59.99
    Current price $59.99
    Save 29% Save %
  • Perko 0591 Vented Fill f/1-1/2" Hose - Straight Neck - Chrome [0591DPGCHR]

    Perko
    Original price $131.53
    Original price $131.53 - Original price $131.53
    Original price $131.53
    Current price $85.99
    $85.99 - $85.99
    Current price $85.99
    In stock

    0591 Vented Fill f/1-1/2" Hose - Straight Neck - ChromeChrome Plated Bronze Cap Black Polymer Body Straight Neck & Heavy Duty Stainless Steel ...

    View full details
    Original price $131.53
    Original price $131.53 - Original price $131.53
    Original price $131.53
    Current price $85.99
    $85.99 - $85.99
    Current price $85.99
    Save 35% Save %
  • Perko Flush Pro Valve Kit - 1" [0457DP6]

    Perko
    Original price $276.69
    Original price $276.69 - Original price $276.69
    Original price $276.69
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99
    Low stock

    Flush Pro Valve Kit - 1"Finally! Fresh flushing of your inboard is as simple as connecting a garden hose.Features: Polymer Stainless Steel Spring ...

    View full details
    Original price $276.69
    Original price $276.69 - Original price $276.69
    Original price $276.69
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99
    Save 27% Save %

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare