General description Optimal automotive refrigerant recharge kit designed for a wide range of automotive A/C systems, compatible with R-134a, R-12, and R-22 freon types. This kit features a clear and convenient design with extra-large, color-coded dials for easy reading. Technical specifications Gauge rated at 250 psi (blue) Hose with 3000 psi burst pressure 600 psi max working pressure Flexible piercing valve with a 1/4 inch fitting Compatible with outside diameter pipes: 1/4 inch, 5/16 inch, and 3/8 inch Color: Blue Material: Copper Measurement allowed error: +/- 1-3cm Compatibility and accessories Includes two can taps with piercing and self-sealing styles for compatibility with a wide range of can valves Other information Package Contents: 1 x R134A Refrigerator Freon Recharge Kit Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing.