3" Inline Exhaust Check Valve | Aquapower 9030-30 Exhaust Check Valve 3 in. Exhaust Check Valve Designed to prevent backflow in marine exhaust systems Stainless steel For 3 in. inside diameter exhaust hose 3.5 in. long
3" Inline Exhaust Check Valve | Aquapower 9030-30 Exhaust Check Valve 3 in. Exhaust Check Valve Designed to prevent backflow in marine exhaust systems Stainless steel For 3 in. inside diameter exhaust hose 3.5 in. long