Description: R134A refrigerant hose is equipped with a pressure gauge for easy checking during use. It is sturdy and durable. The M14 line is for Asia. Features: 1. The fuel tank connector can be adjusted.2. The system's refrigerant charging pipe has a built-in safety dipstick to prevent accidental refrigerant leakage.3. The hose is made of rubber material, high pressure resistant and reliable.4. Used to add R134A refrigerant to high-efficiency vehicles or home air conditioners.5. Used to check the pressure on the low pressure side to fill the air conditioner properly.6. This product can be used to test and refill your vehicle or home air conditioning.7. adapter is sold separately. Specification: Name: R134 air conditioner supply hose Material: metal and plastic Bottle opener thread: M14/1.25cm Interface: R134A low-end Pipe length: 20CM + 20C Pipeline pressure: 600-3000PSI Pressure gauge: about 70MM/2.75 inch Packing list: Car Air Conditioning Hose Kit*1or M14 Bottle Opener Adapter*1Null