Ronix Eight.3 Vented Valve Plug

The Ronix Eight.3 Vented Valve Plug is a  1" port cap that are all made with two sided vent slots which help burp the bag of all extra air while filling, without taking off the cap completely. By burping the bag, you can get the air out and more water in, more water equals more weight. These 1" diameter port cap threads are twice as long, for a water tight fit.