Save money by bypassing your water heater when winterizing your freshwater system. Save time and money by bypassing your water heater when winterizing your freshwater system. Instead of filling your water heater with expensive antifreeze, simply isolate the heater from the rest of the system, then drain it completely of water. Quick-Turn model is permanently attached to the water heater and requires only the turn of a valve to engage. Includes reinforced 8"-long, nylon hose, brass backflow inhibitor, shut-off valve and complete instructions Includes 2-way diverter valve 3/4" pipe thread (NPT)