Winterize the freshwater system on boats or RVs with this kit.Convenient kit lets you use your existing water pump to winterize your freshwater system. Simply connect the siphon hose between a bottle of antifreeze and a brass valve that attaches to the pump inlet port. Kit installs with an adjustable wrench and comes complete with brass valve, siphon hose, PTFE tape and pump adapters.Key FeaturesValve plumbs permanently in placeIncluded fittings enable use of boat's freshwater pump to winterize freshwater systemIncludes brass fittings, adapters, hose, and PTFE tape