This plastic blow-out plug connects to your RV's city water inlet and an air compressor to completely clear water from plumbing lines during winterization. Blowing out water lines eliminates dilution of antifreeze, ensuring thorough freeze protection for recreational vehicles, boats, and seasonal homes.

• Screws into standard RV city water inlet
• Connects to air compressor for water line clearing
• Aids in complete removal of water from plumbing lines
• Eliminates dilution of antifreeze application
• Heavy-duty rust-resistant plastic construction
• For use on recreational vehicles, homes, and boats

How to use: Screw plug into city water inlet, open all drains and faucets, attach and activate air pump until all lines are clear.