2PC Camco 36103 Plug Blow Out Fem Plastic

Key Features;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;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.