Clear out your RV water lines before freezing temperatures hit with the Camco Water System Blow Out Plug. This brass plug screws into the RV city water inlet and has a Schrader tire valve stem connection, so you can attach an air pump to push air through the system. To use it, thread the plug into the city water inlet, open all drains and faucets, then attach and run the air pump until all lines are clear. It helps with both winterization and dewinterization, and the patented design makes the job simple. Features:• Clears water lines during winterization and dewinterization• Solid brass construction• Screws directly into the city water inlet• Schrader valve accepts a standard air pump• Simplifies RV winterizingSpecs:• Brand: Camco• Manufacturer Number: 36153• Connection Type: Schrader tire valve stem• Material: Brass• Quantity: Single• Application: RV city water inlet• Patented: Yes• Warranty: No supplier warranty Brass plug Schrader valve Clears water lines | Camco Water System Blow Out Plug, Brass Schrader Valve