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Marine Plumbing & Ventilation - Fittings

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Best Sellers
Perko Fuel System Locking Cap f/ 1-1/2" Non-Vented Fills [1324DP0BLK]
Regular price
$44.95
Sale price
$44.95
Regular price
$52.22
Regular price
$44.95
Sale price
$44.95
Regular price
$52.22
Fuel System Locking Cap f/ 1-1/2" Non-Vented Fills(1324) Black Plastic with Gasket Built in Lock Cylinder Size #0 Fits PERKO Fills 1313 & 1399 Cap...
GROCO 1-1/2" Bronze NPS to NPT Flange Adapter [IBVF-1500]
-21%
GROCO 1-1/2" Bronze NPS to NPT Flange Adapter [IBVF-1500]
Regular price
$78.95
Sale price
$78.95
Regular price
$101.00
Regular price
$78.95
Sale price
$78.95
Regular price
$101.00
1-1/2" Bronze NPS to NPT Flange AdapterIBVF Flanged Adapters have been developed to address several common problems in the marine industry.  Features:   Eliminate dangerous...
GROCO 3/4" Bronze Flanged Full Flow Seacock [BV-750]
-22%
GROCO 3/4" Bronze Flanged Full Flow Seacock [BV-750]
Regular price
$279.95
Sale price
$279.95
Regular price
$359.00
Regular price
$279.95
Sale price
$279.95
Regular price
$359.00
3/4" Bronze Flanged Full Flow SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in the open...
GROCO Bronze Clam Shell Style Hull Strainer f/Up To 1-1/2" Thru Hull [SC-1500-L]
Regular price
$52.95
Sale price
$52.95
Regular price
$67.00
Regular price
$52.95
Sale price
$52.95
Regular price
$67.00
Bronze Clam Shell Style Hull Strainer f/Up To 1-1/2" Thru Hull Features: C84400 bronze body and door. Cast filter slots. Pressure relief holes in door casting....
GROCO 1-1/4"" NPT x 1-1/4" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-1250-S]
Regular price
$23.95
Sale price
$23.95
Regular price
$30.00
Regular price
$23.95
Sale price
$23.95
Regular price
$30.00
1-1/4"" NPT x 1-1/4" ID Stainless Steel Pipe to Hose Straight Fitting Features: Male NPT x Hose connection #316 Stainless Steel Sizes from 1/2" to 3"...
Perko 0540 Gas Fill/Vent f/1-1/2" Hose - Angled Neck [0540DPGCHR]
Regular price
$64.95
Sale price
$64.95
Regular price
$84.58
Regular price
$64.95
Sale price
$64.95
Regular price
$84.58
0540 Gas Fill/Vent for 1-1/2" Hose - Angled NeckFeatures: Angled Neck Chrome Plated Bronze Cap Black Polymer Body Stainless Steel Bead Chain Integral Tank Vent...
GROCO 1/2" NPT Bronze 3-Way Valve [TWV-500]
-21%
GROCO 1/2" NPT Bronze 3-Way Valve [TWV-500]
Regular price
$42.95
Sale price
$42.95
Regular price
$55.00
Regular price
$42.95
Sale price
$42.95
Regular price
$55.00
1/2" NPT Bronze 3-Way Valve Features: 3-way valve operates logically - The handle points to the direction of flow Center position is "off"  Handle rotates a...
Dometic MSD Fitting f/Small Tank 970 Series [385320006]
Regular price
$28.99
Sale price
$28.99
Regular price
Regular price
$28.99
Sale price
$28.99
Regular price
MSD Fitting f/Small Tank 970 Series ToiletsReplaces MSD fittings for Series 974 MSD models.  Converts Series 972 and 974 - 2.6 gallon models to MSD...
Perko 1-1/4" Pipe to Hose Adapter 90 Degree Bronze MADE IN THE USA [0063DP7PLB]
Regular price
$37.95
Sale price
$37.95
Regular price
$66.58
Regular price
$37.95
Sale price
$37.95
Regular price
$66.58
Perko 1-1/4" Pipe To Hose Adapter 90 Degree BronzeCast BronzeCast hex for easier installationCurved 90 degreesTechnical Information: Pipe Size Inches: 1-1/4 Hose Size Inches: 1-1/4...
Perko 3-1/2" Round Bronze Strainer MADE IN THE USA [0086DP3PLB]
-34%
Perko 3-1/2" Round Bronze Strainer MADE IN THE USA [0086DP3PLB]
Regular price
$22.95
Sale price
$22.95
Regular price
$35.20
Regular price
$22.95
Sale price
$22.95
Regular price
$35.20
Perko 3-1/2" Round Bronze StrainerCast bronzeDrilled holesTechnical Information: For Thru-Hull Size Inches: 1 O.D. Inches: 3-1/2 I.D. Inches: 2-3/8 Model Number: 0086DP3PLB Screw Size: 8...
GROCO 1/4" NPT Bronze Inline Fuel Valve [FV-250]
-22%
GROCO 1/4" NPT Bronze Inline Fuel Valve [FV-250]
Regular price
$20.95
Sale price
$20.95
Regular price
$27.00
Regular price
$20.95
Sale price
$20.95
Regular price
$27.00
1/4" NPT Bronze Inline Fuel ValveFeatures: Selectable handle rotation Full flow Mount foot included C83600 bronze construction Stainless steel handle and hardware 400 WOG PTFE...
GROCO 1" NPT Stainless Steel In-Line Ball Valve [IBV-1000-S]
-21%
GROCO 1" NPT Stainless Steel In-Line Ball Valve [IBV-1000-S]
Regular price
$66.95
Sale price
$66.95
Regular price
$85.00
Regular price
$66.95
Sale price
$66.95
Regular price
$85.00
1" NPT #316 Stainless Steel In-Line Ball ValveFeatures: 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve in...
Perko 0590 Vented Fill f/1-1/2" Hose - Angled Neck - Chrome [0590DPGCHR]
Regular price
$111.95
Sale price
$111.95
Regular price
$131.53
Regular price
$111.95
Sale price
$111.95
Regular price
$131.53
0590 Vented Fill f/1-1/2" Hose - Angled Neck - ChromeChrome Plated Bronze Cap Black Polymer Body Stainless Steel Bead Chain Integral Tank Vent with Flame...
GROCO Bronze Clam Shell Style Hull Strainer f/Up To 2-1/2" Thru Hull [SC-2500-L]
Regular price
$94.95
Sale price
$94.95
Regular price
$121.00
Regular price
$94.95
Sale price
$94.95
Regular price
$121.00
Bronze Clam Shell Style Hull Strainer f/Up To 2-1/2" Thru Hull Features: C84400 bronze body and door. Cast filter slots. Pressure relief holes in door casting....
GROCO Bronze Pipe Nipple - 1/2" NPT [PN-500]
-22%
GROCO Bronze Pipe Nipple - 1/2" NPT [PN-500]
Regular price
$6.95
Sale price
$6.95
Regular price
$9.00
Regular price
$6.95
Sale price
$6.95
Regular price
$9.00
Bronze Pipe Nipple - 1/2" NPT Features: Cast-in wrench flat simplifies installation and removal NPT x NPT Connection C83600 Bronze   Full flow   Note-C83600 bronze...
GROCO 1/2" NPT x 1/2" or 5/8" ID Bronze Pipe to Hose Straight Fitting [PTH-5062]
Regular price
$7.95
Sale price
$7.95
Regular price
$10.00
Regular price
$7.95
Sale price
$7.95
Regular price
$10.00
1/2" NPT x 1/2" or 5/8" ID Bronze Pipe to Hose Straight FittingFeatures: Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 5" Standard...
GROCO 1/2" NPT 90 Stainless Steel Fuel Valve [FV-590-S]
-20%
GROCO 1/2" NPT 90 Stainless Steel Fuel Valve [FV-590-S]
Regular price
$38.95
Sale price
$38.95
Regular price
$49.00
Regular price
$38.95
Sale price
$38.95
Regular price
$49.00
1/2" NPT 90° Stainless Steel Fuel ValveFeatures: Compact design 90° flow path 1/2" NPT male and female ports Use FV-590 (Brass) for fiberglass tanks Use...
Shurflo by Pentair Pressure Reducing City Water Entry - In-Line - Cream [183-039-08]
Regular price
$46.95
Sale price
$46.95
Regular price
$60.76
Regular price
$46.95
Sale price
$46.95
Regular price
$60.76
Pressure Reducing City Water Entry - In-Line - CreamThis combination pressure reducing city water entry and check valve diaphragm design prevents high-pressure damage often caused...
Perko 1" Seacock Ball Valve Bronze MADE IN THE USA [0805006PLB]
-43%
Perko 1" Seacock Ball Valve Bronze MADE IN THE USA [0805006PLB]
Regular price
$204.95
Sale price
$204.95
Regular price
$364.39
Regular price
$204.95
Sale price
$204.95
Regular price
$364.39
Perko 1" Seacock Ball Valve BronzeThese valve bodies are offered to meet the needs of applications thatrequire extra long, scoop or flush type thru-hulls.Cast Bronze.Technical...
Perko Water Inlet Fitting w/Plug [0499DP0CHR]
-20%
Perko Water Inlet Fitting w/Plug [0499DP0CHR]
Regular price
$136.95
Sale price
$136.95
Regular price
$171.25
Regular price
$136.95
Sale price
$136.95
Regular price
$171.25
Water Inlet Fitting(0499) Chrome Plated Bronze Standard Female Swivel Hose Connector Black Plastic Watertight Plug Stainless Steel Bead Chain For obtaining water at docksidePipe Size:...
GROCO 2" NPT Bronze 45 Degree Pipe to 2" Hose [PTHD-2000]
-21%
GROCO 2" NPT Bronze 45 Degree Pipe to 2" Hose [PTHD-2000]
Regular price
$49.95
Sale price
$49.95
Regular price
$64.00
Regular price
$49.95
Sale price
$49.95
Regular price
$64.00
2" NPT Bronze 45 Degree Pipe to 2" Hose Features: 45 degree Male NPT x Hose connection C83600 Bronze Standard Flow UL Listed 647B Note- C83600...
GROCO Bronze Pipe Nipple - 1" NPT [PN-1000]
-20%
GROCO Bronze Pipe Nipple - 1" NPT [PN-1000]
Regular price
$15.95
Sale price
$15.95
Regular price
$20.00
Regular price
$15.95
Sale price
$15.95
Regular price
$20.00
Bronze Pipe Nipple - 1" NPT Features: Cast-in wrench flat simplifies installation and removal NPT x NPT Connection C83600 Bronze   Full flow   Note-C83600 bronze...
GROCO 1/2" NPT Bronze In-Line Ball Valve [IBV-500]
-20%
GROCO 1/2" NPT Bronze In-Line Ball Valve [IBV-500]
Regular price
$27.95
Sale price
$27.95
Regular price
$35.00
Regular price
$27.95
Sale price
$27.95
Regular price
$35.00
1/2" NPT Bronze In-Line Ball ValveFeatures: Female NPT Threads 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve...
GROCO 1-1/2"" NPT x 1-1/2" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-1500-S]
Regular price
$29.95
Sale price
$29.95
Regular price
$38.00
Regular price
$29.95
Sale price
$29.95
Regular price
$38.00
1-1/2"" NPT x 1-1/2" ID Stainless Steel Pipe to Hose Straight Fitting Features: Male NPT x Hose connection #316 Stainless Steel Sizes from 1/2" to 3"...
GROCO Backing Block f/3/4" 1" Seacocks [BB-1]
-21%
GROCO Backing Block f/3/4" 1" Seacocks [BB-1]
Regular price
$55.95
Sale price
$55.95
Regular price
$71.00
Regular price
$55.95
Sale price
$55.95
Regular price
$71.00
Backing Block for 3/4" & 1" SeacocksFeatures: Each size fits multiple seacock sizes Press threaded brass inserts into the hull side of the backing block...
TH-Marine Push-In Drain Plug for 1-1/2" Thru-Hull Drains [PP-150-DP]
Regular price
$13.95
Sale price
$13.95
Regular price
$16.99
Regular price
$13.95
Sale price
$13.95
Regular price
$16.99
Push-In Drain Plug f/1-1/2" Thru-Hull DrainsThese push-in drain plugs are used to stop water flow through drains or overflows from baitwell or livewell. Also work...
Viega MegaPress 316 FKM 1" 90 Degree Elbow [91705]
-19%
Viega MegaPress 316 FKM 1" 90 Degree Elbow [91705]
Regular price
$191.95
Sale price
$191.95
Regular price
$239.90
Regular price
$191.95
Sale price
$191.95
Regular price
$239.90
MegaPress 316 FKM 1" 90 Degree ElbowFeatures: For use with Sch. 5 to Sch. 40 stainless steel pipe 316 stainless steel Press connection Components:FKM sealing...
GROCO 3/8" NPT Bronze Inline Fuel Valve [FV-375]
-22%
GROCO 3/8" NPT Bronze Inline Fuel Valve [FV-375]
Regular price
$20.95
Sale price
$20.95
Regular price
$27.00
Regular price
$20.95
Sale price
$20.95
Regular price
$27.00
3/8" NPT Bronze Inline Fuel ValveFeatures: Selectable handle rotation Full flow Mount foot included C83600 bronze construction Stainless steel handle and hardware 400 WOG PTFE...
GROCO 1" NPT x 1" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow Elbow [PTHC-1000]
Regular price
$19.95
Sale price
$19.95
Regular price
$25.00
Regular price
$19.95
Sale price
$19.95
Regular price
$25.00
1" NPT x 1" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow ElbowFeatures: 90 degree Male NPT x Hose connection C83600 Bronze Sizes from...
GROCO 1/2" NPT x 1/2" ID Bronze Pipe to Hose Straight Fitting [PTH-500]
Regular price
$6.95
Sale price
$6.95
Regular price
$8.00
Regular price
$6.95
Sale price
$6.95
Regular price
$8.00
1/2" NPT x 1/2" ID Bronze Pipe to Hose Straight FittingFeatures: Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 5" Standard Flow UL...
Perko 3/4" Pipe to Hose Adapter Straight Bronze MADE IN THE USA [0076DP5PLB]
Regular price
$14.95
Sale price
$14.95
Regular price
$19.15
Regular price
$14.95
Sale price
$14.95
Regular price
$19.15
Perko 3/4" Pipe to Hose Adapter Straight BronzeCast bronzeCast hex for easier installationPrecision machined hose barbTechnical Information: Pipe Size Inches: 3/4 Hose Size Inches: 3/4...
Perko 3/4" Seacock Ball Valve Bronze MADE IN THE USA [0805005PLB]
Regular price
$148.95
Sale price
$148.95
Regular price
$292.81
Regular price
$148.95
Sale price
$148.95
Regular price
$292.81
Perko 3/4" Seacock Ball Valve BronzeThese valves bodies are offered to meet the needs of applications that require extra long, scoop or flush type thru-hulls....
GROCO 3" Full Flow Ball Valve [FBV-3000]
-22%
GROCO 3" Full Flow Ball Valve [FBV-3000]
Regular price
$619.95
Sale price
$619.95
Regular price
$796.00
Regular price
$619.95
Sale price
$619.95
Regular price
$796.00
3" Full Flow Ball ValveThis GROCO flanged ball valve is designed for controlling the flow and pressure of fluids in a pipeline system.Features: 1-1/4" sizes...
GROCO 2-1/2" NPT Bronze 45 Degree Pipe to 2-1/2" Hose [PTHD-2500]
Regular price
$96.95
Sale price
$96.95
Regular price
$124.00
Regular price
$96.95
Sale price
$96.95
Regular price
$124.00
2-1/2" NPT Bronze 45 Degree Pipe to 2-1/2" Hose Features: 45 degree Male NPT x Hose connection C83600 Bronze Standard Flow UL Listed 647B Note- C83600...
GROCO 1/2" NPT Bronze Inline Fuel Valve [FV-500]
-20%
GROCO 1/2" NPT Bronze Inline Fuel Valve [FV-500]
Regular price
$34.95
Sale price
$34.95
Regular price
$44.00
Regular price
$34.95
Sale price
$34.95
Regular price
$44.00
1/2" NPT Bronze Inline Fuel ValveFeatures: Selectable handle rotation Full flow Mount foot included C83600 bronze construction Stainless steel handle and hardware 400 WOG PTFE...
Perko 1-1/2 Pipe To Hose Adapter Straight Bronze MADE IN THE USA [0076DP8PLB]
Regular price
$37.95
Sale price
$37.95
Regular price
$49.59
Regular price
$37.95
Sale price
$37.95
Regular price
$49.59
Perko 1-1/2" Pipe to Hose Adapter Straight BronzeCast bronzeCast hex for easier installationPrecision machined hose barbTechnical Information: Pipe Size Inches: 1-1/2 Hose Size Inches: 1-1/2...
Shurflo by Pentair Pressure Reducing City Water Entry - Wall Mount - Gel White [183-029-18]
Regular price
$48.95
Sale price
$48.95
Regular price
$55.31
Regular price
$48.95
Sale price
$48.95
Regular price
$55.31
Pressure Reducing City Water Entry - Wall Mount - Gel WhiteThis combination pressure reducing city water entry and check valve diaphragm design prevents high-pressure damage...
Viega MegaPress 316 FKM 1" Union [91935]
-19%
Viega MegaPress 316 FKM 1" Union [91935]
Regular price
$540.95
Sale price
$540.95
Regular price
$675.57
Regular price
$540.95
Sale price
$540.95
Regular price
$675.57
MegaPress 316 FKM 1" UnionFeatures: For use with Sch. 5 to Sch. 40 stainless steel pipe 316 stainless steel Press connection Components:AFM flat gasket, FKM...
Viega MegaPress 316 FKM MPT Adapter - 1" x 1" (MPT) [91220]
-19%
Viega MegaPress 316 FKM MPT Adapter - 1" x 1" (MPT) [91220]
Regular price
$119.95
Sale price
$119.95
Regular price
$149.62
Regular price
$119.95
Sale price
$119.95
Regular price
$149.62
MegaPress 316 FKM MPT Adapter - 1" x 1" (MPT)Features: For use with Sch. 5 to Sch. 40 stainless steel pipe 316 stainless steel Press...
GROCO 1-1/4" NPT x 1-1/2" Bronze Full Flow Pipe to Hose Straight Fitting [FF-1250]
Regular price
$23.95
Sale price
$23.95
Regular price
$30.00
Regular price
$23.95
Sale price
$23.95
Regular price
$30.00
1-1/4" NPT x 1-1/2" Bronze Full Flow Pipe to Hose Straight FittingFeatures: Full Flow Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 3"...
Perko 1-1/2" Seacock Ball Valve Bronze MADE IN THE USA [0805008PLB]
Regular price
$316.95
Sale price
$316.95
Regular price
$580.12
Regular price
$316.95
Sale price
$316.95
Regular price
$580.12
Perko 1-1/2" Seacock Ball Valve BronzeThese valve bodies are offered to meet the needs of applications thatrequire extra long, scoop or flush type thru-hulls.Cast Bronze.Technical...
Perko 3/4" Pipe To Hose Adapter 90 Degree Bronze MADE IN THE USA [0063DP5PLB]
Regular price
$21.95
Sale price
$21.95
Regular price
$31.73
Regular price
$21.95
Sale price
$21.95
Regular price
$31.73
Perko 3/4" Pipe To Hose Adapter 90 Degree BronzeCast BronzeCast hex for easier installationCurved 90 degreesTechnical Information: Pipe Size Inches: 3/4 Hose Size Inches: 3/4...
Forespar Marelon Full-Flow Seacock 1/2" Mushroom Through-Hull [904042ABYC]
Regular price
$90.95
Sale price
$90.95
Regular price
$112.45
Regular price
$90.95
Sale price
$90.95
Regular price
$112.45
Marelon Full-Flow Seacock & 1/2" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong...
GROCO Garboard Drain w/Plug [TD-500]
-17%
GROCO Garboard Drain w/Plug [TD-500]
Regular price
$9.95
Sale price
$9.95
Regular price
$12.00
Regular price
$9.95
Sale price
$9.95
Regular price
$12.00
Garboard Drain w/Plug The ConceptOnce your boat is in its cradle, sling, lift, or trailer, draining the bilge is easy with a garboard drain. All models...
GROCO 3/4" Bronze Tri-Flanged Ball Valve/Seacock [FBV-750]
-13%
GROCO 3/4" Bronze Tri-Flanged Ball Valve/Seacock [FBV-750]
Regular price
$74.95
Sale price
$74.95
Regular price
$87.00
Regular price
$74.95
Sale price
$74.95
Regular price
$87.00
3/4" Bronze Tri-Flanged Ball Valve/SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in the open position),...
Beckson 1" Drain Plug Screw Type w/Gasket - Black [DP10-B]
-14%
Beckson 1" Drain Plug Screw Type w/Gasket - Black [DP10-B]
Regular price
$6.95
Sale price
$6.95
Regular price
$8.10
Regular price
$6.95
Sale price
$6.95
Regular price
$8.10
Beckson Screw Type 1" Drain PlugScrew-type drain plug with patented self-cleaning thread design, O-ring, and super strength center retaining legs to secure the center while...
GROCO 1/2" 4-Way Tank Selector Kit [TS-350-T]
-22%
GROCO 1/2" 4-Way Tank Selector Kit [TS-350-T]
Regular price
$219.95
Sale price
$219.95
Regular price
$282.00
Regular price
$219.95
Sale price
$219.95
Regular price
$282.00
1/2" 4-Way Tank Selector Kit TS-350-T Tank Selector utilizes a single FV-450-X full flow valve mounted on an attractive stainless steel mount bracket and plumbed with...
GROCO 1-1/4" NPT Bronze In-Line Ball Valve [IBV-1250]
-22%
GROCO 1-1/4" NPT Bronze In-Line Ball Valve [IBV-1250]
Regular price
$83.95
Sale price
$83.95
Regular price
$108.00
Regular price
$83.95
Sale price
$83.95
Regular price
$108.00
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 with the valve...
GROCO 2" NPT x 2-1/4" Bronze Full Flow Pipe to Hose Straight Fitting [FF-2000]
Regular price
$70.95
Sale price
$70.95
Regular price
$91.00
Regular price
$70.95
Sale price
$70.95
Regular price
$91.00
2" NPT x 2-1/4" Bronze Full Flow Pipe to Hose Straight FittingFeatures: Full Flow Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 3"...
Attwood Snap-Handle Stainless Steel Drain Plug - 1" Diameter [7520A3]
Regular price
$13.95
Sale price
$13.95
Regular price
$13.99
Regular price
$13.95
Sale price
$13.95
Regular price
$13.99
Snap-Handle Stainless Steel Drain Plug - 1" DiameterA clockwise turn of the handle tightens the plug in its tube, and the handle flips down to...

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