Brady Prod. BAR-125 Deep-Well Air Release Designed to work in hydropneumatic (air to water) pressure systems where an excess amount of air needs to be released from the tank. Constructed of ABS plastic materials, Brady air releases are noncorrosive, nonconductive, and completely serviceable. The Features 1-1/4" male thread, 1/4" tap for air gauge Removes excess from tank Removable float arm Release valve adjustable from 0 to 40 PSI Factory set at 20 PSI USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.