Completely clears water lines of all water prior to winterization. Screw plug onto female hose inlet, open all drains and faucets, and attach to air pump until all lines are clear.
Pump antifreeze directly into RV waterlines and supply tanks. Kit comes with flexible connecting line, city water connection and water faucet adapters. Carded.
Save on antifreeze, winterize with this easily-installed water heater by-pass kit. Sturdy, brass backflow preventer and 100 percent shut-off valve by-passes the water heater with a single turn. Carded.