Durable Brass body ; Large 3in. Gauge is easy to read ; Compatible with R12 R22 R134A R404a ; 3 Color-coded Freon service charging rubber hose : Compatible with R12 R22 R134A R404a ; Durable Brass body ; Large 3in. Gauge is easy to read ; 3 Color-coded Freon service charging rubber hose : 2500PSI Burst 500PSI Max. W.P.; 1/4" Fitting on both end ; Overall length 36in. ; R134 Quick couplers for High/Low fittings(Red and Blue) included ; R134 ACME Adapter(1/4" SAE male to 1/2" ACME female) included .