Camco Plastic Blow Out Plug is used to apply air pressure to your water lines to ensure that all of the water is removed before winterizing.
With less water remaining in the lines, your anti-freeze will work at the dilution you want.
Use prior to winterizing your RV to clear water lines
Screw the plug into your RV's city water inlet to blow air through the lines
Incorporates a Schrader valve type connection that allows use with most compressors
Durable plastic construction – will not rust
Easy to use