Camco 23303 1/2" Back-Flow Preventer - Lead Free

Camco's ½-Inch RV Water Heater Backflow Preventer allows water to flow only in one direction— towards your RV’s hot water heater. It does not allow water to pass another way. This helps stop backflow from your RV water heater and into your freshwater system. Features a ½-inch male x female NPT. It is constructed of heavy-duty brass with a stainless spring. Quantity: (1) backflow preventer.