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 17.198 Series Male Hose Connectors are manufactured from cast brass and designed for marine and industrial fluid transfer systems. Featuring male threaded connections from 1/4" to 4" and hose tail sizes from 8 mm to 100 mm, these fittings provide a secure connection between threaded ports and flexible hoses for water, fuel, and general plumbing applications.
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$ 3.04
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1-2 weeks delivery time The Osculati 17.199 Series Female Hose Connectors are manufactured from cast brass and designed to connect flexible hoses to male-threaded plumbing components. Available with female threads from 1/4" to 3" and hose tail sizes from 8 mm to 80 mm, these fittings are suitable for marine plumbing, water systems, fuel transfer, pumps, filters, and general fluid handling applications.
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$ 4.26
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1-2 weeks delivery time The Osculati 17.197 Series 90° Male Hose Connectors are manufactured from brass and designed for connecting flexible hoses to female-threaded plumbing components where a right-angle connection is required. Available with male threads from 1/4" to 1-1/2" and hose tail diameters from 8 mm to 45 mm, these fittings help reduce hose bending and simplify installations in confined spaces.
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$ 15.24
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1-2 weeks delivery time The Osculati 17.231 Series Cross Tee Fittings are manufactured from brass and feature four female threaded outlets for multi-directional pipe connections. Available in thread sizes from 3/8" to 1-1/2", these fittings are designed for distributing flow between four pipeline directions in marine, plumbing, water, fuel, and general fluid transfer systems.
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$ 13.25
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1-2 weeks delivery time The Osculati 17.317 Series Brass Tee Connectors are manufactured from brass and feature three female threaded ports arranged in a T-configuration. Available in thread sizes from 1/4" to 4", these fittings are designed for splitting, joining, or redirecting fluid flow in marine plumbing, water, fuel, and industrial piping systems.
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$ 7.17
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1-2 weeks delivery time The Osculati 17.275 Series 3-Way Brass Corner Connectors are manufactured from brass and feature three female threaded ports arranged at 90° angles. Available in 1/2" and 3/4" thread sizes, these fittings are designed for corner pipe connections, flow distribution, and compact plumbing installations in marine, water, and industrial piping systems.
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$ 20.40
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1-2 weeks delivery time The Osculati 17.270 Series Brass Coupling Sleeves are manufactured from brass and designed for joining two male-threaded pipe fittings of the same size. Available in thread sizes from 1/4" to 2-1/2", these female-to-female couplings provide a reliable connection solution for marine plumbing, water systems, fuel installations, and general piping applications.
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$ 3.19
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1-2 weeks delivery time The Osculati 17.225 Series Double Nipples are manufactured from brass and feature male threads on both ends for connecting female-threaded fittings, valves, couplings, and plumbing components. Available in thread sizes from 1/4" to 4", these fittings provide a simple and reliable solution for extending, joining, or adapting threaded pipe systems in marine, water, fuel, and industrial installations.
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$ 2.70
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1-2 weeks delivery time The Osculati 17.227 Series Reduced Double Nipples are manufactured from brass and feature male threads of different sizes on each end for connecting and adapting female-threaded fittings. Available in sizes from 1/4" x 3/8" up to 2-1/2" x 3", these reducing connectors provide a reliable solution for transitioning between different pipe diameters in marine plumbing, water systems, fuel installations, and industrial piping applications.
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$ 2.96
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1-2 weeks delivery time The Osculati 17.222 Series Female Thread Plugs are brass threaded end caps designed to seal unused female-threaded ports in marine and industrial piping systems. Manufactured from brass with an internal thread configuration, these plugs are available in sizes from 1/4" to 2" and provide a secure and reliable closure for water, fuel, and fluid handling installations.
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$ 2.09
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1-2 weeks delivery time The Osculati 17.223 Series Male Thread Plugs are brass threaded pipe plugs designed to seal unused female-threaded ports in marine and industrial piping systems. Featuring a robust hex head design for easy installation, these brass plugs are available in thread sizes from 1/4" to 2" and provide reliable closure for water, fuel, and fluid handling systems.
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$ 2.14
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1-2 weeks delivery time The Osculati 17.221 Series Brass Male/Female Reducing Couplings are designed to connect threaded fittings of different sizes within marine and industrial piping systems. Manufactured from durable brass, these reducing adapters feature male-to-female threaded connections and are available in multiple reduction combinations from 1/4" to 3", providing a reliable solution for adapting pipe thread sizes.
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$ 2.40
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1-2 weeks delivery time The Osculati 17.272 Series Male/Female Sleeves are brass thread adapter bushings designed to convert and adapt different pipe thread sizes in marine and industrial plumbing systems. Featuring a male thread on the outside and a female thread on the inside, these compact brass reducers provide reliable threaded connections and are available in multiple size combinations from 3/8" to 2".
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$ 4.06
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1-2 weeks delivery time The Osculati 17.271 Series Brass Female/Female Reducing Sleeves are designed to connect threaded fittings of different sizes within marine and industrial piping systems. Manufactured from corrosion-resistant brass, these reducer couplings feature female threads on both ends and provide a reliable solution for adapting pipe sizes from 3/8" to 2".
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$ 4.86
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1-2 weeks delivery time The Osculati 17.274 Series 3-piece 90° elbow connectors are brass male-to-female threaded fittings designed for reliable directional changes in piping systems. Featuring a sphero-conical sealing system with integrated O-ring, these fittings provide secure, leak-resistant connections and are available in thread sizes from 3/8" to 1-1/4".
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$ 14.24
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1-2 weeks delivery time The Osculati 17.273 Series 3-piece straight connectors are brass threaded fittings designed for secure inline pipe connections. Featuring a sleeve construction with sphero-conical sealing surfaces and an integrated O-ring, these connectors provide reliable leak-resistant performance in marine and industrial fluid systems. Available in thread sizes from 3/8" to 1-1/2".
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$ 10.87
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1-2 weeks delivery time The Osculati 17.120 Series Brass 45° Female/Female Elbows are threaded pipe fittings designed to create smooth 45-degree directional changes in marine and industrial fluid systems. Manufactured from corrosion-resistant brass, these fittings feature female threads on both ends and are available in sizes from 1/2" to 1-1/2".
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$ 10.77
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1-2 weeks delivery time The Osculati 17.224 Series Brass 90° Male/Female Elbows are threaded pipe fittings designed to create right-angle connections in marine and industrial fluid systems. Manufactured from corrosion-resistant brass, these fittings feature a male thread on one side and a female thread on the other, providing a durable and reliable solution for pipe routing and directional changes. Available in sizes from 1/4" to 4".
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$ 5.57
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1-2 weeks delivery time The Osculati 17.226 Series Brass 90° Female/Female Elbows are threaded pipe fittings designed to create right-angle connections in marine and industrial fluid systems. Manufactured from corrosion-resistant brass, these fittings feature female threads on both ends and provide a durable solution for compact pipe routing. Available in thread sizes from 1/4" to 2".
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$ 5.47
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1-2 weeks delivery time The Osculati 17.230 Series Brass Female/Female Reducing Elbows are 90° threaded fittings designed to connect pipes of different thread sizes while changing flow direction. Manufactured from corrosion-resistant brass, these compact reducing elbows feature female threads on both ends and are suitable for marine plumbing, water systems, fuel installations, and industrial piping applications.
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$ 13.05
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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.