• AC recharge hose kit with gauge, 1.27 cm R134A valve, low-pressure quick coupler, and adapter, made of high-quality aluminum alloy for increased strength and durability. • Gauge with a rated pressure of 250 psi, burst pressure of 3000 psi, and maximum operating pressure of 600 psi. • Compatible with R134A, R12, or R22 refrigerants in vehicle or home air conditioning systems. • Integrated safety valve to prevent accidental refrigerant venting. • Designed to work only with R-134a type bottles, 1/2 thread for America and Europe. • 90-degree push-and-lock coupler with automatic stop for easy use and precise charging. • Easy-to-read gauge to monitor pressure during recharging. • Includes 1.27 cm x 6.35 mm SAE male valve opener, 38.1 cm recharge hose, 13 mm quick coupler, and 7.9 cm long gauge. • T-type button with sharp-tipped internal pin to easily and quickly pierce the refrigerant bottle.