Ensure that your vehicle continues to work as expected especially when camping season starts by replacing worn out or damaged Camco Brass Blow Out Plug for RV Winterizing 36153 with a brand new one. This item updates your previous part which may already need updating. The Camco blow out plug enables you to winterize your RV easily and quickly. It s also easy to install. Simply screw the water line blow out plug into the city water inlet open all drains and faucets and then attach and activate the air pump. This patented cleanout plug is made of sturdy brass for extended use. The Camco Brass Blow Out Plug for RV Winterizing 36153 is intended to help you completely clear your water lines before storing your vehicle away. This method prevents it from freezing and keeps your machine away from expanded plumbing rust splits and corrosion.