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 Guidi KIT1163CN is a bronze cover designed for marine water strainers series 1163 and 1166. It ensures secure sealing and durability in harsh marine environments. Available in multiple sizes from 3/4" to 4" with different diameters depending on the model.
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$ 127.48
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1-2 weeks delivery time The Guidi KIT1164 is a complete set including a stainless steel 316 impurity basket and a U-shaped sealing profile for marine water strainers series 1164, 3164, 166, and 3166. It ensures efficient filtration and secure installation. Available in sizes from 3/4" to 4".
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$ 94.31
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1-2 weeks delivery time The Guidi KIT1170SC is a 1 1/2" BSPP spare plug made of chromed brass, supplied with O-ring, safety chain, and screw. Designed for deck fillers and pump-out systems, it ensures secure sealing and reliable operation in marine environments.
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$ 33.18
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1-2 weeks delivery time The Guidi KIT1182TC is a chromed brass spare plug with O-ring, designed for 1 1/2" BSPP deck fillers and pump-out systems. It provides reliable sealing and durable performance in marine environments.
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$ 28.92
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1-2 weeks delivery time The Guidi KIT1283 is a stainless steel 316 impurity basket with integrated zinc anode, designed for marine water strainers series 1283 and 3283. It provides effective filtration and corrosion protection. Available in DN65 and DN150 sizes.
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$ 432.12
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1-2 weeks delivery time The Guidi KIT51281CEP613 is an HDPE plastic impurity basket designed for water strainers series 1281 and 3281. It provides effective filtration with lightweight, corrosion-resistant construction. Suitable for DN65 systems.
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$ 2,300.45
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1-2 weeks delivery time The Guidi KITCH1160 is a nylon key designed for opening and closing water strainer covers. Compatible with Guidi strainers series 1158 and 1160, it provides safe and easy handling for sizes from 3/8" to 1".
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$ 12.23
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1-2 weeks delivery time The Guidi KITCH1182 is a universal nylon key designed for opening pump-out and deck filler caps. Compatible with Guidi series 1171–1182, it ensures safe and easy handling during maintenance.
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$ 9.45
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1-2 weeks delivery time The Guidi KITORI Series O-ring gaskets are designed for sealing seawater filter housings. Available in multiple sizes, they ensure reliable watertight sealing and long service life in marine environments.
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$ 1.37
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1-2 weeks delivery time The Guidi ST1160.000000 is a nylon holding bracket designed for securing water strainers series 1158 and 1160. Suitable for sizes from 3/8" to 1", it provides stable mounting and reliable support in marine installations.
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$ 24.49
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1-2 weeks delivery time The TruDesign Manual Ball Valves range includes marine composite ball valves in sizes from 1/2" to 3" for onboard intake, discharge, and plumbing systems above and below the waterline. Manufactured in New Zealand from glass-reinforced nylon composite, these lightweight valves are resistant to corrosion and electrolysis. PTFE ball and sealing components ensure smooth long-term operation, while ISO 9093:2021 and Bureau Veritas certification provide compliance for marine installations.
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$ 62.33
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1-2 weeks delivery time The TruDesign Replacement Valve Handles range includes replacement T handles and lever handles for marine ball valves in sizes from 1/2" to 2". Designed for compatibility with TruDesign composite valves, these replacement handles provide reliable operation and straightforward installation for marine plumbing systems. Versions are available for small valve sizes 1/2", 3/4", and 1", as well as larger 1 1/4", 1 1/2", and 2" applications.
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$ 13.73
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1-2 weeks delivery time The TruDesign Monitored Ball Valves range includes marine composite ball valves with integrated position monitoring in sizes from 1/2" to 2". Designed and manufactured in New Zealand for use above and below the waterline, these valves feature glass-reinforced nylon composite bodies resistant to corrosion and electrolysis. Integrated position monitoring enables remote valve status indication and can be used for engine or generator start interlock systems to ensure cooling water availability.
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$ 243.97
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1-2 weeks delivery time The TruDesign Display Panel for Position Monitored Ball Valves is a remote monitoring control panel designed for marine ball valve monitoring systems. It enables indication of multiple valve positions from an accessible onboard location and can also be integrated into engine or generator interlock systems to prevent startup when cooling water valves are closed.
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$ 214.35
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1-2 weeks delivery time The TruDesign Ball Valve Spanners range includes installation tools designed for safe and efficient installation of TruDesign marine ball valves in sizes from 1/2" to 2". These specialized tools help prevent damage to composite plastic components during installation and provide secure handling for marine plumbing systems onboard boats and yachts.
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$ 4.79
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1-2 weeks delivery time The TruDesign Black Skin Fittings range includes marine composite through hull fittings in sizes from 1/2" to 3" for onboard intake and discharge systems. Manufactured from durable black corrosion-resistant composite plastic, these fittings are designed for secure hull installation and reliable long-term operation in harsh marine environments. Available sizes include 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", and 3".
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$ 10.15
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1-2 weeks delivery time The TruDesign White Skin Fittings range includes marine composite through hull fittings in sizes from 1/2" to 2" for onboard intake, discharge, and plumbing systems. Manufactured from durable white corrosion-resistant composite plastic, these fittings are designed for reliable long-term operation in marine environments and provide secure leak-resistant hull installation for boats and yachts.
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$ 10.15
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1-2 weeks delivery time The TruDesign Recessed Skin Fittings range includes flush-mount composite through hull fittings in sizes from 1/2" to 1 1/2" for below-waterline marine applications. Manufactured in New Zealand from glass-reinforced nylon composite, these recessed fittings provide reduced drag, corrosion-free operation, and lightweight installation for marine intake and discharge systems. Certified to ISO 9093:2021 and approved by Bureau Veritas for marine use.
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$ 10.15
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1-2 weeks delivery time The TruDesign White Recessed Skin Fittings range includes flush-mount composite through hull fittings in sizes from 1/2" to 1 1/2" for below-waterline marine applications. Manufactured from corrosion-resistant composite material, these white recessed fittings provide reduced drag, lightweight installation, and reliable long-term performance for marine intake and discharge systems onboard boats and yachts.
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$ 10.15
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1-2 weeks delivery time The TruDesign Long Domed Skin Fittings range includes extended-length composite through hull fittings with 140 mm body length for marine plumbing applications above and below the waterline. Manufactured in New Zealand from glass-reinforced nylon composite, these black domed fittings provide corrosion-free installation, reduced weight, and reliable long-term performance for marine intake and discharge systems.
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$ 18.17
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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.