Forespar Marelon Full-Flow Seacock & 1/2" Mushroom Through-Hull

The Forespar Marelon Full-Flow Seacock & 1/2" Mushroom Through-Hull is designed for reliable through-hull plumbing on cruising sailboats and powerboats. This product is essential for maintaining the integrity of water intakes, livewell systems, and raw-water cooling loops, where a single failure can lead to significant risks at sea.

Engineered to eliminate the performance penalties of traditional bronze ball valves, the Marelon composite construction offers superior corrosion resistance against saltwater and electrolysis. The full-flow design minimizes pressure loss across the valve, which is crucial for cooling systems where maintaining optimal engine temperatures is vital.

This assembly is ideal for applications such as livewell fills, engine raw-water intakes, washdown systems, and galley through-hulls. Its compatibility with standard 1/2" fittings makes it a versatile choice for various installations, particularly in environments where chemical stability and flow rate are critical.