AUTOKAY 10PCS Stem HVAC AC Schrader System Vacuum 2.75″stem
Publisher: AUTOKAY. 10 New Service / Access Valves 1/4 SAE x 1/4 O.D. x 2.75″ stem. The core is a poppet valve assisted by a spring that is threaded into the steam. The stem is a self-contained valve which opens to admit gas to a chamber.