【WIDE COMPATIBILITY】 Car AC recharge kit fits R134A refrigerant for a vehicle or home air-conditioning, with highly working performance. 【REMIUM QUALITY】R134A can tap, R134A low side quick coupler and adapter switch made of high-quality aluminium alloy, for high heat resistance durability and safety. Built-in safety valve to prevent accidental venting of refrigerant. 【EASY TO USE】 Car AC Air Conditioning R134A Refrigerant Hose kit is designed with a 90-degree push & lock coupler with auto shut off. Coming with a gauge used to check low side pressure to accurately fill the air conditioner, easy and convenient to use. .