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 Osculati 17.123 Series Male Pipe Caps are manufactured from marine-grade AISI 316 stainless steel and designed to securely seal female-threaded ports, fittings, valves, and pipe connections. Available in thread sizes from 3/8" to 2", these corrosion-resistant caps provide a durable solution for marine seawater, freshwater, fuel, drainage, and general plumbing systems.
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$ 3.91
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1-2 weeks delivery time The Osculati 17.321 Series All-Thread Skin Fittings are manufactured from brass and available in both chromed brass and yellow brass versions. Designed for marine through-hull installations, these fittings feature a rounded head and fully threaded body. Available in thread sizes from 3/8" to 4", with lengths from 55 mm to 210 mm and flange diameters from 35 mm to 150 mm, they are suitable for water intake, drainage, and onboard plumbing systems.
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$ 19.25
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1-2 weeks delivery time The Osculati 17.324 Series All-Thread Skin Fittings are manufactured from brass and available in both chromed brass and yellow brass versions. Designed for marine through-hull installations, these fittings feature a flat head design and a fully threaded body. Available in thread sizes from 3/8" to 2", with lengths from 55 mm to 100 mm, flange diameters from 35 mm to 83 mm, and wall thicknesses from 5 mm to 8 mm, they are suitable for water intake, discharge, and onboard plumbing systems.
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$ 19.62
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1-2 weeks delivery time The Osculati 17.324 Series All-Thread Skin Fittings are manufactured from brass and available in both chromed brass and yellow brass versions. Featuring a flared head design and a fully threaded body, these through-hull fittings are suitable for marine water intake, discharge, and drainage systems. Available in thread sizes from 3/8" to 2", with lengths from 55 mm to 100 mm and head diameters from 35 mm to 83 mm.
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$ 18.74
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1-2 weeks delivery time The Osculati 17.323 / 17.423 Series Skin Fittings are manufactured from brass and available in both yellow brass and chromed brass versions. Designed for marine through-hull installations, these fittings combine a rounded-head skin fitting with an integrated hose connector. Available in sizes from 3/8" x 15 mm to 2" x 55 mm, with lengths from 55 mm to 92 mm and head diameters from 35 mm to 83 mm, they are suitable for water intake, discharge, drainage, and onboard plumbing systems.
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$ 19.40
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1-2 weeks delivery time The Osculati 17.424 Series Skin Fittings are manufactured from chromed brass and designed for marine through-hull installations with direct hose connections. Featuring a flat head design and integrated hose connector, these fittings are available in sizes from 3/8" x 15 mm to 2" x 55 mm, with overall lengths from 55 mm to 100 mm, head diameters from 35 mm to 83 mm, and head thicknesses from 5 mm to 8 mm.
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$ 20.57
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1-2 weeks delivery time The Osculati 17.342 Series Grounding Washers are manufactured from brass and designed for electrical bonding of brass through-hull fittings. Suitable for sea discharge fittings from 1" to 2", these washers incorporate an integrated ground wire connection point, allowing secure connection to onboard bonding systems and helping maintain electrical continuity throughout marine installations.
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$ 3.09
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1-2 weeks delivery time The Osculati 17.511 Series Check Valves are manufactured from plastic and designed for installation with compatible brass and stainless steel skin fittings. These non-return valves help prevent backflow in drainage systems and are available for 1" and 1-1/2" through-hull installations. Compatible with selected Osculati brass and stainless steel skin fitting series.
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$ 5.15
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1-2 weeks delivery time The Osculati 17.203.80 Skin Fitting is manufactured from chromed brass and designed for use with all types of bilge pumps. Featuring a 15 mm hose adaptor connection, this through-hull fitting provides a reliable discharge outlet for bilge drainage systems. The fitting measures 70 mm in overall length, with a 38 mm flange diameter and a 28 mm threaded section.
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$ 25.16
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1-2 weeks delivery time The Osculati 17.214.01 Mini Skin Fitting is manufactured from polished AISI 316 stainless steel and features a convex head design. Designed for compact through-hull applications, it incorporates a 1/4" x 13 mm connection and measures 38 mm overall length, with a 19.8 mm head diameter and 7 mm internal passage diameter.
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$ 13.35
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1-2 weeks delivery time The Osculati 17.214.02 Mini Skin Fitting is manufactured from polished AISI 316 stainless steel and features a flush-mount head design. Designed for compact marine through-hull installations, it incorporates a 1/4" x 13 mm connection and measures 42 mm overall length, with an 18 mm head diameter and 7 mm internal passage diameter.
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$ 11.57
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1-2 weeks delivery time The Osculati 17.314 Series Thru-Hull Scoop Strainers are manufactured from cast brass and designed to protect seawater intake systems from debris while maintaining water flow. Available in thread sizes from 3/8" to 4", these scoop strainers are suitable for engine cooling, generator cooling, air conditioning, washdown, and other marine seawater intake applications.
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$ 21.27
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1-2 weeks delivery time The Osculati 17.421 Series Installation Tools are manufactured from galvanized steel and designed for quick mounting of brass and stainless steel skin fittings. Available for thread sizes from 1/2" to 2", these tools simplify the installation of compatible Osculati through-hull fittings, hose-connector skin fittings, flush-mount skin fittings, and check-valve fittings.
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$ 11.38
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1-2 weeks delivery time The Osculati 17.228 Series Full Port Ball Valves are manufactured from nickel-plated brass and designed for full-flow shut-off applications. Featuring long threads compliant with ISO 9093 regulations and a stainless steel handle, these PN25-rated valves are available in thread sizes from 3/8" to 4". The series provides unrestricted flow through the valve body and is suitable for marine plumbing, seawater, freshwater, and fluid transfer systems.
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$ 13.91
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1-2 weeks delivery time The Osculati 17.228.55-56 Full Passage Locking Ball Valves are manufactured from chromed brass and feature a stainless steel handle with a pierced locking point for padlock installation. Designed for wastewater drainage systems compliant with ISO 8099 standards, these full-flow valves are available in 1-1/4" and 1-1/2" thread sizes and provide secure shut-off with lockable operation.
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$ 80.07
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1-2 weeks delivery time The Osculati 17.229 Series 3-Way Diverter Ball Valves are manufactured from nickel-plated brass and feature a red-coated steel operating lever. Designed with a full-port L-port flow configuration, these valves are suitable for water systems, gasoline, heating systems, and other non-corrosive fluids. Operating temperature range is from -10°C to +100°C. Available in thread sizes from 3/8" to 1-1/2".
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$ 45.95
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1-2 weeks delivery time The Osculati 17.229.20-25 Series 3-Way Ball Valves are manufactured from nickel-plated brass and feature a red-coated steel operating lever. Designed with a T-port flow configuration and reduced bore passage, these valves are suitable for water systems, gasoline, heating installations, and non-corrosive fluids. Operating temperature range is from -10°C to +100°C. Available in thread sizes from 3/8" to 1-1/2".
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$ 45.95
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1-2 weeks delivery time The Osculati 17.240 Series Remote Electrocontrolled Ball Valves are manufactured from nickel-plated brass and feature a full-flow design with a reversible 24V electric servomotor. Designed for remote operation, the system includes an ON-OFF control panel with safety fuse and allows control of up to 10 valves simultaneously. With a 14-second operating time, emergency manual override compliant with ISO 228, and protection ratings up to IP65, these PN40 valves are available in sizes from 1/2" to 2".
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$ 600.18
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1-2 weeks delivery time The Osculati 17.242.00 Remote Control Panel is designed for operating PN40 remote electrocontrolled ball valves. Suitable for 24V systems, the panel features ON-OFF control, an integrated safety fuse, and allows simultaneous control of up to 10 valves. Compact dimensions of 75 x 60 mm make it suitable for dashboard and control station installations on boats and yachts.
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$ 56.44
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1-2 weeks delivery time The Osculati 17.241 Series Remote Electrocontrolled Ball Valves are manufactured from nickel-plated brass and feature a full-flow design with a reversible 24V electric servomotor. Designed for integration with remote control systems, the valves provide a 14-second opening/closing cycle and include emergency manual override compliant with ISO 228. Available in sizes from 1/2" to 2", with protection ratings up to IP65 depending on model.
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$ 560.84
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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.