Groco Marine Plumbing
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Groco®IBV-Series 2" NPT(F) Inline ValveIBV-Series 2" NPT(F) Inline Valve by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve in the open position) or for drainingPatented selectable handle rotation$168.44 - $200.09 - Groco®IBV-Series 3/4" NPT(F) Inline ValveIBV-Series 3/4" NPT(F) Inline Valve by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve in the open position) or for drainingPatented selectable handle rotation$33.82 - $69.89
- Groco®IBV-Series 3/8" NPT(F) Inline ValveIBV-Series 3/8" NPT(F) Inline Valve by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve in the open position) or for drainingPatented selectable handle rotation$23.03 - $55.62
- Groco®1" Hose I.D. to 1" NPT(M) Hose/Pipe Adapter1" Hose I.D. to 1" NPT(M) Hose/Pipe Adapter by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$11.11 - $17.45
- Groco®1" NPS(F) to 1" NPT(M) Pipe/Pipe Adapter1" NPS(F) to 1" NPT(M) Pipe/Pipe Adapter by Groco®. Patented IBVF Flanged Adaptors have been developed to address several common problems in the marine industry. This product is made of high-quality materials to serve you for years to...Eliminate dangerous thread miss-match when in-line valves are screwed onto thru hullsAccept standard thru-hulls into the base and standard in-line valves on top$57.32 - $64.15
- Groco®1-1/2" Hose I.D. to 1-1/2" NPT(M) Hose/Pipe Adapter1-1/2" Hose I.D. to 1-1/2" NPT(M) Hose/Pipe Adapter by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$24.86 - $29.36
- Groco®1-1/2" NPT(M) to 1-1/2" NPS(M) Pipe/Pipe Adapter1-1/2" NPT(M) to 1-1/2" NPS(M) Pipe/Pipe Adapter by Groco®. Patented IBVF Flanged Adaptors have been developed to address several common problems in the marine industry. This product is made of high-quality materials to serve you for...Eliminate dangerous thread miss-match when in-line valves are screwed onto thru hullsAccept standard thru-hulls into the base and standard in-line valves on top$77.61 - $78.22
- Groco®1-1/4" BSPP(M) to 1-1/4" BSPP(F) Pipe/Pipe Adapter1-1/4" BSPP(M) to 1-1/4" BSPP(F) Pipe/Pipe Adapter by Groco®. Patented IBVF Flanged Adaptors have been developed to address several common problems in the marine industry. This product is made of high-quality materials to serve you for...Eliminate dangerous thread miss-match when in-line valves are screwed onto thru hullsAccept standard thru-hulls into the base and standard in-line valves on top$60.36 - $68.64
- Groco®1-1/4" Hose I.D. to 1-1/4" NPT(M) Hose/Pipe Adapter1-1/4" Hose I.D. to 1-1/4" NPT(M) Hose/Pipe Adapter by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$19.49 - $23.81
- Groco®2" Hose I.D. to 2" NPT(M) Hose/Pipe Adapter2" Hose I.D. to 2" NPT(M) Hose/Pipe Adapter by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$33.44 - $46.37
- Groco®2" NPS(F) to 2" NPT(M) Pipe/Pipe Adapter2" NPS(F) to 2" NPT(M) Pipe/Pipe Adapter by Groco®. Patented IBVF Flanged Adaptors have been developed to address several common problems in the marine industry. This product is made of high-quality materials to serve you for years to...Eliminate dangerous thread miss-match when in-line valves are screwed onto thru hullsAccept standard thru-hulls into the base and standard in-line valves on top$87.90 - $101.91
- Groco®3/4" Hose I.D. to 3/4" NPT(M) Hose/Pipe Adapter3/4" Hose I.D. to 3/4" NPT(M) Hose/Pipe Adapter by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$7.73 - $12.70
- Groco®3/4" NPS(F) to 3/4" NPT(M) Pipe/Pipe Adapter3/4" NPS(F) to 3/4" NPT(M) Pipe/Pipe Adapter by Groco®. Patented IBVF Flanged Adaptors have been developed to address several common problems in the marine industry. This product is made of high-quality materials to serve you for years...Eliminate dangerous thread miss-match when in-line valves are screwed onto thru hullsAccept standard thru-hulls into the base and standard in-line valves on top$49.31 - $58.92
- Groco®APHS Series Bronze Perforated Pick-Up StrainerAPHS Series Bronze Perforated Pick-Up Strainer by Groco®. Access to the thru-hull fitting and seacock beneath GROCO hull strainers is made easy with the patented access door design. Now there is no need to remove the entire strainer to...Patented access door design allows easy access to Thru HullsC84400 bronze body and door$186.39 - $460.93
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$378.59 - $398.71
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$336.60 - $433.40
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$609.51 - $658.55
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$646.78 - $697.83
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$275.63 - $288.71
- Groco®ARG Series StrainerARG Series Strainer by Groco®. Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at...Mounting System Allows Removal Without ToolsBonding Connection Both Sides$262.42 - $265.76
- Groco®Bronze Clam Shell Style Hull StrainerBronze Clam Shell Style Hull Strainer by Groco®. Uses 6 #10 fasteners. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...C84400 bronze body and doorCast filter slots$33.13 - $138.59
- Groco®Bronze Scoop Thru Hull with NutBronze Scoop Thru Hull with Nut by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Designed for increased flow compared to standard Thru HullsEngineered to high standards$54.88 - $58.74
- Groco®Bronze Scoop Thru Hull with NutBronze Scoop Thru Hull with Nut by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Designed for increased flow compared to standard Thru HullsEngineered to high standards$42.24 - $42.86
- Groco®Bronze Scoop Thru Hull with NutBronze Scoop Thru Hull with Nut by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Designed for increased flow compared to standard Thru HullsEngineered to high standards$87.79 - $93.89
- Groco®Bronze Slotted Hull Strainer with Access DoorBronze Slotted Hull Strainer with Access Door by Groco®. Uses #10 fasteners. Access to the thru-hull fitting and seacock beneath the hull strainer is made easy with the patented access door design. No need to remove the entire strainer...Patented access door design allows easy access to Thru HullsC84400 bronze body and door$156.01 - $342.58
- Groco®Bronze StrainerBronze Strainer by Groco®. Easy access to the thru-hull fitting and seacock beneath Groco hull strainer with patented access door design. No need to remove the entire strainer to clear nuisance marine growth.Patented access door design allows easy access to Thru HullsC84400 bronze body and door$67.16 - $388.21
- Groco®Filter BasketFilter Basket by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...Made to guarantee exceptional reliabilityHigh grade materials$94.25 - $336.60
- Groco®Filter BasketFilter Basket by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...Made to guarantee exceptional reliabilityHigh grade materials$10.20 - $103.12
- Groco®Filter BasketFilter Basket by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...Made to guarantee exceptional reliabilityHigh grade materials$61.82 - $113.02
- Groco®HVL Series Vented LoopHVL Series Vented Loop by Groco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT to accept a barb fitting if you wish to vent overboardOverboard venting is required if PVL or HVL series is used in an exhaust system$240.52 - $268.86
Are you an avid boater looking for hardware that is a cut above the rest? Then Groco is the only name you need to know. The company was born in Baltimore in 1918, the time of the industrial boom when marine and automotive industries were growing extremely fast. The company’s founder, Angus Roy Gross, Sr., had a keen eye on innovation. He had many patents, the most distinctive of which were an ice shaver, combination lever, blow torch, and much more. However, in the late 1920s, Groco decided to focus on the marine industry. Now the company is recognized for its superior-quality water pumps, valves, fittings, hull scoops, raw water strainers, water pressure systems, and many other related marine products.
At Groco, they have always been committed to staying on the cutting edge of product development. From manual machining equipment many years ago to state-of-the-art CNC machining technology, Groco is constantly growing and improving to ensure ultimate customer satisfaction. Featuring a solid construction, Groco marine parts are proven to deliver outstanding performance and reliability. They will keep your vessel operating at its peak, improving your boating experience. Groco uses the finest materials while making their underwater hardware to guarantee it will hold up to the most demanding marine conditions. Whether you opt for stainless steel fittings or an aluminum hull scoop, rest assured you will make your engine room or hull look at its best for years to come.
Groco’s tradition of creating innovative designs is the main factor that distinguishes the company from the competition and allows it to take its place among marine industry leaders. Although the company has gained worldwide popularity for its pumps and hardware, it offers products that feature far more sophisticated designs. Tired of those clogged strainers in hard-to-reach places? Groco has you covered with top-notch strainers that can clean themselves on specific intervals. And how about a waste treatment system that will allow you to discharge waste legally in almost any place you are? Don’t want to go to the engine room to open or close seacocks? Get Groco E-Valve to access seacocks with a push of a button. It will allow you to have full control of all your valves, exercise all valves, view valve status immediately, and much more. Rely on Groco to make your time on the water safer and more comfortable!
New Arrivals
New Arrivals - Updated September 14, 2022
