Marine plumbing fittings are essential components for maintaining reliable water flow and connections on boats. These fittings, including pipe to hose adapters, hose barbs, and thru-hull fittings, ensure secure and leak-resistant plumbing systems for onboard freshwater, fuel, and drainage applications. Marine plumbing fittings also include various pipe fitting and drain components that contribute to a well-functioning onboard system. High quality hardware, such as threaded connectors and barbed fittings, ensures secure and efficient water flow for drainage and supply lines. Regular replacement of worn or corroded fittings is essential to maintain the integrity of the plumbing system, preventing leaks and ensuring long-term reliability in marine environments.
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1-2 weeks delivery time The Plastic Stepped Hose Reducer Connector series is designed for connecting hoses of different diameters in water, drainage, ventilation, and fluid transfer systems. Manufactured from plastic and featuring a stepped design that can be cut to the required size, these adapters are available in ranges of 13–38 mm and 30–60 mm, providing a flexible solution for multiple hose diameters.
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$ 38.42
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1-2 weeks delivery time The Nylon Hose Tee Connector series is designed for branching flexible hose systems in water, air, and fluid transfer applications. Manufactured from nylon and featuring three hose barb connections, these lightweight and corrosion-resistant fittings are available in 14 mm and 20 mm sizes for secure hose-to-hose connections.
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$ 1.15
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1-2 weeks delivery time The Plastic Hose Connector with Union Nut is designed for secure inline hose connections in water transfer, drainage, and fluid handling systems. Manufactured from durable plastic and fitted with a removable union nut for easy installation and maintenance, it is available in 12 mm, 16 mm, 20 mm, and 25 mm hose sizes.
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$ 2.63
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1-2 weeks delivery time The Hose Connection Vent with Stainless Steel Flame Protection Net Guidi is a straight vent fitting designed for hose applications. It combines reliability, durability, and safety, making it the perfect choice for your boat's ventilation system. Equipped with a stainless steel flame protection net, this fitting ensures safety and performance in marine environments.
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$ 17.56
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1-2 weeks delivery time The Vetus Y3V Plastic Three-Way Valve is designed for efficient water system management on your ship. Made from high-quality, shock-resistant plastic, this durable valve is capable of withstanding high pressure and harsh marine conditions. Hose connection fittings are sold separately to complete your setup.
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$ 127.29
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1-2 weeks delivery time The Vetus Y3C Plastic Y-Connector is a key component for a robust water supply system on your yacht. Made from shock-resistant plastic, this connector is designed to withstand high pressures, ensuring reliable performance in demanding marine environments. Hose connections are sold separately to complete your setup.
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$ 46.47
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1-2 weeks delivery time The Vetus YPA Plastic Hose Connectors are premium hose fittings crafted from shock-resistant polycarbonate, designed to withstand high pressure and extreme temperatures. These connectors are available in various sizes, including 19 mm, 25 mm, 28 mm, 32 mm, and 38 mm, ensuring a secure and reliable connection for your marine water system.
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$ 7.41
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1-2 weeks delivery time The Hollex 90° Through-Hull Fitting is designed for 3/4" (19 mm) hose installations through the hull. Featuring a durable plastic body and a polished AISI 304 stainless steel flange, it provides a corrosion-resistant, watertight, and professional-looking solution for marine water, drainage, and ventilation systems.
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$ 9.08
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1-2 weeks delivery time The Hollex Through-Hull Fitting for 1" hoses is manufactured from polished AISI 316 stainless steel for maximum corrosion resistance in marine environments. Designed to provide a secure and watertight hose connection through the hull, it is suitable for drainage, seawater, freshwater, and other onboard plumbing applications.
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$ 45.81
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1-2 weeks delivery time The Brass Hose Tail Adapter features a 1/4" NPT male thread and a 3/8" hose barb connection for secure attachment of flexible hoses to threaded fittings. Manufactured from durable brass, it offers excellent corrosion resistance and is suitable for marine, industrial, pneumatic, fuel, and fluid transfer applications.
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$ 4.49
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1-2 weeks delivery time The Hollex Adapter Fitting 7/8"-14 UNF Male x 3/4" BSP Male is designed for connecting components with different thread standards in marine fuel, hydraulic, and fluid transfer systems. Manufactured from corrosion-resistant metal, it provides a reliable and secure connection between 7/8"-14 UNF and 3/4" BSP threaded fittings.
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$ 23.93
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1-2 weeks delivery time The Hollex Mini Ball Valve Female/Female is a compact brass shut-off valve designed for marine, industrial, and fluid handling applications. Featuring a durable brass body, female BSP threads on both ends, and an easy-to-operate lever handle, it provides reliable flow control in installations where space is limited. Available in 1/4", 3/8", and 1/2" BSP sizes.
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$ 9.33
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1-2 weeks delivery time The Hollex Brass Hose Tail with Female BSP Thread provides a reliable connection between flexible hoses and threaded pipe systems. Manufactured from durable brass and featuring a female BSP thread with a hose barb outlet, it is suitable for marine water, cooling, fuel, and general fluid transfer applications. Available in multiple thread and hose diameter combinations.
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$ 5.91
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1-2 weeks delivery time The Hollex Brass Hose Tail with Male BSP Thread is designed for secure hose-to-thread connections in marine and industrial systems. Manufactured from durable brass, it combines a male BSP thread with an integrated hose barb for reliable installation and leak-resistant performance. Available in multiple thread and hose size combinations.
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$ 5.91
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1-2 weeks delivery time The Hollex Brass Hose Tail 1/4" NPT Male × 6 mm Hose Barb is a compact brass fitting designed for connecting 6 mm hoses to 1/4" NPT threaded ports. Manufactured from durable brass, it provides a secure and leak-resistant connection for marine, pneumatic, fuel, and fluid transfer systems.
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$ 2.86
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1-2 weeks delivery time The Hollex Brass Straight Hose Tail 1/8" NPT Male provides a reliable connection between hoses and threaded fuel, air, or fluid systems. Manufactured from corrosion-resistant brass, this straight fitting combines a 1/8" NPT male thread with multiple hose barb size options, making it suitable for marine, automotive, pneumatic, and industrial applications.
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$ 7.31
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1-2 weeks delivery time The Sytec Brass 90° Hose Tail 1/8" NPT Male is designed for secure fuel, air, and fluid line connections where installation space is limited. Manufactured from high-quality brass, this 90-degree fitting combines a 1/8" NPT male thread with a hose barb connection, making it ideal for fuel pumps, fuel systems, and other demanding automotive and marine applications. Available for 6 mm, 8 mm, and 10 mm hose sizes.
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$ 12.09
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1-2 weeks delivery time The Osculati 17.421 Series All-Thread Skin Fittings are manufactured from AISI 316 stainless steel and designed for marine through-hull installations. Featuring a fully threaded body and mirror-polished ground connections, these fittings are available in thread sizes from 3/8" to 2-1/2", with overall lengths from 53 mm to 124 mm and flange diameters from 35 mm to 110 mm to suit a wide range of onboard plumbing and drainage applications.
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$ 21.95
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1-2 weeks delivery time The Osculati 17.421.73 Short Thread Skin Fitting is manufactured from corrosion-resistant AISI 316 stainless steel and designed for marine through-hull installations where a shorter threaded section is required. Featuring a 1" thread, mirror-polished ground connections, a 60 mm overall length (C), 48 mm flange diameter (D), and 25 mm internal diameter, it provides a durable and professional solution for onboard plumbing and drainage systems.
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$ 38.09
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1-2 weeks delivery time The Osculati 17.422 Series Long Thread Skin Fittings are manufactured from AISI 316 stainless steel and designed for marine through-hull installations requiring an extended threaded section. Featuring mirror-polished ground connections, these fittings are available in 1", 1-1/4", and 1-1/2" thread sizes, with lengths from 107 mm to 112 mm and internal diameters from 25 mm to 38 mm, making them suitable for thicker hull structures and demanding onboard plumbing applications.
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$ 52.66
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What are the key differences between marine plumbing fittings and standard household plumbing fittings?
Marine plumbing fittings differ from standard household plumbing fittings in their materials and design, as they must withstand constant exposure to water, salt, and pressure variations. Fittings for boats, such as bronze pipe to hose adapters, 316 stainless steel connectors, and nylon hose fittings, are corrosion-resistant and designed for durability in harsh marine environments. Additionally, components like seacocks, hose clamps, and pipe plugs ensure secure and leak-free connections, preventing failures that could lead to water intrusion or system malfunctions.
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How does a pipe to hose adapter help connect different plumbing components on a boat?
A pipe to hose adapter allows seamless connection between rigid plumbing components and flexible marine hoses, ensuring compatibility across different boat plumbing fittings. Commonly made from stainless steel, brass, nylon, or Marelon, these adapters provide a secure and watertight transition for water intake, drainage, and fuel lines. Available in various sizes and thread types, they help maintain reliable plumbing connections on decks, hulls, and tanks while resisting corrosion in harsh marine environments.
How does a 90 degree elbow fitting help in routing boat plumbing lines?
A 90 degree elbow fitting is essential in boat plumbing as it allows for efficient redirection of water flow in tight spaces, preventing kinks in hoses and reducing strain on connections. Made from durable materials like plastic or NPT brass, it ensures a secure and leak free transition between pipes and hoses. With options like barbed or swivel designs, these fittings simplify installation and maintenance, making them a vital accessory for any marine plumbing system.