A/C Pro R134a 1 Pc AC Gauge and Hose

"A/C Pro R-134a Professional Gauge & Hose features an extra-large gauge, easy-to-use trigger dispenser, 24"" hose and a quick-connect coupler. The gauge is able to diagnose if a recharge is needed, identify the current low-side pressure in the system and determine increases in pressure during the recharge process. This product is compatible with both sealed and self-sealing R-134a cans.".