10x Service/Access Valve 1/4″ SAE *1/4″ OD *4.65″ Stem Core AC Refrigeration Kit
Consist of a valve stem into which a valve core is threaded. The valve core is a poppet valve assisted by a spring. A valve cap is important on a Schrader valve to avoid entering dirt and jamming it or contaminating the sealing surfaces and causing a leak.