T type knobs have internal pin with sharp tip help to pierce refrigerant bottle easily and quickly. ONLY work with piercing cans of Freon. Built-in safety valve to prevent accidental venting of refrigerant.
Read MoreT type knobs have internal pin with sharp tip help to pierce refrigerant bottle easily and quickly. ONLY work with piercing cans of Freon. Built-in safety valve to prevent accidental venting of refrigerant.
Read More