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 John Guest Speedfit 15 mm Shut-Off Valve is designed for flow control in 15 mm water systems. Featuring Speedfit push-fit connections, the valve enables quick installation and convenient isolation of water lines for maintenance and servicing operations.
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$ 28.87
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1-2 weeks delivery time The John Guest Speedfit 22 mm Female-to-Female Straight Coupling is designed for connecting two sections of 22 mm pipe in watertight water systems. Featuring Speedfit push-fit technology, stainless steel retaining teeth, and an integrated O-ring seal, it provides a secure, reusable, and tool-free connection.
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$ 10.47
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1-2 weeks delivery time The John Guest Speedfit 22 mm 90° Female-to-Female Elbow is designed for changing pipe direction in 22 mm plumbing systems. The fitting combines Speedfit push-fit technology with a watertight O-ring seal and stainless steel retaining teeth for fast and reliable installation.
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$ 10.11
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1-2 weeks delivery time The John Guest Speedfit 22 mm 90° Female Tee is designed for creating branch connections in 22 mm pipe systems. Featuring three push-fit ports with stainless steel retaining teeth and integrated O-ring seals, it provides a watertight and reusable plumbing connection.
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$ 16.75
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 3/4" Female Brass Connector combines a 22 mm push-fit pipe connection with a 3/4" female brass thread. Designed for watertight plumbing systems, it enables fast integration between Speedfit pipework and threaded components.
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$ 16.39
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 3/4" Male Brass Connector is designed for connecting 22 mm pipework to components with a 3/4" female threaded port. The fitting combines Speedfit push-fit technology with a brass threaded outlet for secure and reusable installation.
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$ 12.91
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 3/4" Brass Tee Connector is designed for branching 22 mm pipe systems while incorporating a 3/4" threaded connection. Featuring Speedfit push-fit technology and a brass threaded section, it provides a secure and reusable solution for water installations.
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$ 52.25
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 3/4" Female Brass Elbow combines a 90° elbow fitting with a 3/4" female brass thread. Designed for compact plumbing installations, it allows directional pipe routing while maintaining a secure threaded connection.
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$ 44.36
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 3/4" Male Brass Elbow is designed for connecting 22 mm pipework to 3/4" female threaded components while changing pipe direction by 90°. The fitting combines Speedfit push-fit technology with a brass threaded outlet for reliable installation.
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$ 47.02
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1-2 weeks delivery time The John Guest Speedfit 22 mm x 15 mm Reduction Connector is designed for joining 22 mm and 15 mm pipe systems within a single installation. The push-fit Speedfit design provides a secure, watertight, and reusable transition between different pipe diameters.
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$ 11.67
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1-2 weeks delivery time The John Guest Speedfit 22 x 15 x 22 mm Reduced Tee Connector is designed for branching a 22 mm pipe system with a reduced 15 mm outlet. The fitting combines Speedfit push-fit technology with an integrated sealing system for fast and reliable installation.
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$ 17.07
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1-2 weeks delivery time The John Guest Speedfit 22 mm 2-Way Manifold is designed for distributing flow from a single supply line into two separate outlets. Featuring Speedfit push-fit technology, the manifold provides a secure, watertight, and reusable connection for 22 mm plumbing systems.
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$ 38.65
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1-2 weeks delivery time The John Guest Speedfit 22 mm 3-Way Manifold is designed for distributing water flow from a single supply line to three separate outlets. The fitting utilizes Speedfit push-fit technology to provide secure, watertight, and reusable connections.
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$ 40.55
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1-2 weeks delivery time The John Guest Speedfit 22 x 22 x 15 mm Reduced Tee Connector is designed for creating a reduced 15 mm branch from a 22 mm pipe system. The fitting provides a secure push-fit connection and allows integration of different pipe diameters within the same installation.
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$ 17.33
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1-2 weeks delivery time The John Guest Speedfit 22 mm Tube Insert is designed for installation inside 22 mm pipe before connection to Speedfit fittings. The insert provides internal support and helps maintain proper connection performance in water distribution systems.
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$ 2.40
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1-2 weeks delivery time The John Guest Polyethylene Water Tube is designed for potable water and plumbing installations requiring high flexibility, chemical resistance, and impact resistance. Available in 15 mm and 22 mm diameters, the tubing is supplied in red or blue color variants for easy identification of hot and cold water circuits. The 15 mm version is rated to 7 bar and supplied in 100 m rolls, while the 22 mm version is rated to 7.5 bar and supplied in 50 m rolls. Minimum bend radius is 120 mm.
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$ 399.95
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1-2 weeks delivery time The Whale 15 mm Quick-Release T-Joint is designed for branching 15 mm pipe systems in freshwater installations. Featuring Whale's quick-release connection technology, the fitting provides a secure connection without requiring safety clips, tools, or replacement parts during installation and maintenance.
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$ 13.71
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1-2 weeks delivery time The Whale 15 mm Quick-Release Elbow Connector is designed for changing pipe direction in freshwater plumbing systems. The quick-connect design enables rapid installation without tools while providing a secure connection suitable for 15 mm pipework.
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$ 8.14
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1-2 weeks delivery time The Whale 15 mm Quick-Release Straight Connector is designed for joining two sections of 15 mm pipe in freshwater systems. The fitting features Whale's double-seam coupling technology for a secure connection without requiring safety clips or specialized tools.
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$ 11.21
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1-2 weeks delivery time The Whale 15 mm x 1/2" BSP Male Adapter is designed for connecting 15 mm Whale quick-release pipe systems to components with a 1/2" BSP female thread. The fitting combines a quick-connect pipe connection with a BSP threaded outlet for secure installation.
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$ 9.50
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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.