Martec Vacuum (Anti-Siphon) Valve 22mm

Martec's 22mm vacuum (anti-siphon) valve is a safe, reliable protective component for your boat's engine. It effectively prevents siphoning in the engine's exhaust outlet — a phenomenon that can otherwise draw water back into the engine and cause serious damage while the engine is off. The valve is made from corrosion-resistant materials, fully leak-proof, and easy to install even in a tight engine bay.

A robust, reliable choice for boat owners who want to ensure trouble-free engine operation. Always check your engine model and exhaust hose diameter before ordering — anti-siphon valve sizing varies between engine manufacturers.