Compatible with R12 R22 R134A R502 ; Durable Brass body ; 3 Color-coded Freon service charging rubber hose : 2500PSI Burst 500PSI Max. W.P.; 1/4" Fitting on both end ; Overall length 36in. ; Large 2-1/2 in. gauges ; R134 Quick couplers for High/Low fittings(Red and Blue) included ; R134 Adapter(1/4" SAE male to 1/2" female) included .