Completely clear your water lines with RV blow-out plugs. Screw the plug into the city water inlet, open all drains and faucets, attach and activate air pump until all lines are clear!
Aids in water removal
Eliminates dilution of antifreeze application in recreational vehicles, mobile homes and boats
Patented
Directions:
Screw into city water intake fitting
Apply air pressure using an oil-less air compressor