Features This R134A refrigerant charge hose comes with a gauge for easy viewing during use. Compatible with R134A, R12, and R22 refrigerants for use in vehicle air conditioning systems. Equipped with a built-in gauge for convenient pressure monitoring. Outer scale indicates pressure in KG/cm, inner scale indicates pressure in PSI. Designed for long service life, stable performance, and easy installation. Specification Condition: New Item Type: Refrigerant Gauge Hose Color: As shown in picture Material: Copper + Rubber Application: Universal Port Size: 1/4" SAE Pressure Gauge Range (KG): -76 to 17.5 Kg/cm Pressure Gauge Range (PSI): -30 to 250 PSI Package List 1 x Refrigerant Gauge Hose 1 x R134A Bottle Opener 1 x Self-locking Connector