Through-hull Fitting


A through-hull fitting is a component installed in a boat's hull that allows water to pass through. It is typically used for plumbing, such as for a boat's sink, toilet, or bilge pump. Through-hull fittings are made of various materials, including bronze, stainless steel, and plastic, and come in different shapes and sizes depending on their intended use. They are installed by drilling a hole in the hull and securing the fitting with a nut and backing plate. It is important to properly seal the fitting to prevent water from entering the boat. Through-hull fittings should be inspected regularly and replaced if there are any signs of damage or corrosion.


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