A/C Leak Freeze R, 0.5 Ounce Refill, Hose Not Included.FEATURES:Will stop leaks of refrigerant gas in appliance and refrigeration systems.   A/C Leak Freeze is compatible and can be mixed with refrigerant gas:   R11-R12-R13-R14-R22-R23-R123-R124-R134a-R141b-R404a-R407c-R410a-R502-R503-R507-R600. Permanently seals leaks in Appliance refrigeration systems   Will continue to seal additional leaks for up to 1 year that meet testing specifications   Does not contain polymers   Not activated by moisture or oxygen   Tested to be non-clogging to a/c compressor and recovery unit   Ideal for preventive maintenance and leak protection   Leak Criteria   AC Leak Freeze and AC Leak Freeze will repair leaks measuring one-half millimeter (0.5mm) and smaller. A/C Leak Freeze instructions for use    1. Locate the low-pressure port of the system and unscrew the service valve cap.   2. Unscrew the cartridge cap of A/C Leak Freeze (FIG. A).   3. Connect the adapter to the A/C Leak Freeze cartridge (FIG. B).   4. Connect the cartridge to the low-pressure port of the system and inject contents (FIG. C).   5. Disconnect the cartridge from the system.   6. Charge the system.   7. Turn the system on and let operate.