(1) R454b Refrigerant, 8 oz. 1/4" male flare hose connection and internal valve core for "self-sealing". Replaces R410a and R32 A hose with a valve core depressor is required in order to dispense the refrigerant from this can. We also sell a Part# SF5050 valve for better control of the refrigerant outlet fitting. Enter "SF5050 in search