Best Boat Plumbing Fittings of 2025

Attwood Drain Plug is a reliable and easy-to-use plumbing fitting for boats. It fits 1-inch inside diameter drain openings and can be inserted into the drain opening with ease. Once inserted, turn the handle clockwise to tighten it in place and snap the handle down to lock the plug in place. To remove the plug, lift the handle to unlock and turn it counter-clockwise. This drain plug is a must-have for any boat owner as it can easily and reliably plug drains on board, preventing water from entering the boat.

Seachoice Thru-Hull Connector is a reliable and convenient tool to ensure a secure connection between your boat and the water. With a 90-degree angled design, it can fit ¾ inch inside diameter hose and max hull thickness of 3/4 inch. The flange measures 1-1/2 inch and it is made of hi-impact white plastic. This product is essential for boat plumbing fittings. It offers peace of mind that the water system will function properly and without leaks. The maximum thickness ensures that it will fit most boats. The angled design is useful for tight spaces and the white finish gives a professional and clean look.

The BuleVina Thru Hull Connector is an excellent choice for your boat plumbing needs. It serves as a reliable deck floor drain or vent port for bilge pumps, helping you manage water effectively. Its versatility means it can be used in various vehicles, from boats to tractors, making it a handy accessory for many applications. Crafted from high-quality PVC, this connector is built to endure harsh environmental conditions, ensuring longevity and durability. Plus, its design allows for quick and easy installation, saving you time and effort while enhancing your boating experience.

The Attwood Drain Plug is a reliable solution for plugging drains on board. Simply insert the plug into the drain opening and turn the T-Handle clockwise to secure it in place. When it's time to remove the plug, turn the handle counter-clockwise. This plug is designed for use in 1-inch-diameter drain openings and features durable rubber construction. The handle is brass-plated and includes a chain, making it easy to keep track of. With the Attwood Drain Plug, you can easily and conveniently prevent water from entering your boat through the drains.

The Better Boat Drain Plug is designed for durability and reliability in marine environments. Made from brass, it provides a strong seal and resists corrosion, ensuring long-lasting use. Its universal compatibility features a 2-inch outer ring, making it easy to fit onto your boat's transom. Installation is simple, as the plug works with standard boat drain plug wrenches, allowing you to spend less time on maintenance and more time enjoying your time on the water. Additionally, you can choose between brass or stainless steel options to suit your needs.

The SEAFLO Thru Hull Fitting is designed to enhance your boat's plumbing system. With a height of 94mm and a diameter of 64mm, this fitting provides a reliable connection for water flow. Its specific dimensions, including a 23.7mm inner diameter, ensure compatibility with various plumbing setups, making installation straightforward. The 25.6mm inner diameter further supports efficient water transfer, preventing leaks and maintaining pressure. By using this fitting, you can enjoy peace of mind knowing your boat's plumbing is secure and effective.

The Attwood Livewell Pump is an adjustable spray head designed to enhance the quality of water in your livewell tank. It is compatible with ¾ inch inside diameter hoses and can be mounted on the side of the tank. The pump can be installed in tanks with a maximum 5/8 inch wall thickness. With its adjustable spray head, you can easily customize the flow and direction of the water to best suit the needs of your livewell tank. This pump is ideal for boating enthusiasts who want to keep their bait and catch healthy and fresh while out on the water.

Attwood Thru-Hull Connector is a reliable fitting that ensures a secure and convenient connection between the hull and hose. It fits ¾ inch inside diameter hose, has a maximum hull thickness of 1 inch, and requires a 1 inch installation hole. The flange diameter is 1-1/2 inch, making installation easier. This connector is perfect for boat plumbing fittings, and it is made of polypropylene with a white finish, which gives it a sleek look. With its 90-degree angle, it makes it easier to connect hoses and ensures that the hose is not bent or kinked, making it more efficient. The Attwood Thru-Hull Connector is a great choice for boat owners who want a reliable and easy-to-install connector.

Attwood Brass Plumbing Fittings are a reliable solution for your boating plumbing needs. They are designed to fit 1/2 inch inside diameter thru hulls and create a watertight seal. The cam action lever flips down to lock, providing extra security. The brass construction resists corrosion, ensuring the fittings will last longer. These fittings are not suitable for use with chemicals or fuels. They are ideal for livewell drains and come with brass snaps and plates. With Attwood Brass Plumbing Fittings, you can have peace of mind knowing that your boat's plumbing will work efficiently and effectively.

The SeaSense Thru-Hull Fitting is an essential component for boat plumbing systems. Manufactured in China, this fitting is designed specifically for fishing equipment, ensuring durability and reliability on the water. With compact dimensions of 12.7 cm x 7.62 cm x 5.08 cm, it won’t take up much space on your boat, making installation straightforward. Weighing only 0.16 lbs, this lightweight fitting is easy to handle, allowing you to focus on your fishing adventures without added hassle. This product is ideal for those looking to enhance their boat's plumbing efficiency.