Access and service valves 3/16″ for a/c ; refrigeration line (QTY: 10 VALVES) easy installation for fast access inside refrigeration and air conditioning systems. Can be used in cfc, hcfc and hfc refrigerants systems. Includes cap with core remover tool. Can be attached permanently to the system. We have equipments, products and tools from the hvacr industry on stock and ready for shipment.