R134A A/C DIAGNOSTIC TESTING CHARGING MANIFOLD GAUGE HVAC METER W/ 5FT HOSES For 48 STATES Complete Diagnostic & Service Gauge Set For Use On Air Conditioning Systems With R134A Sight Glass With 3 Color-Coded 5 (Ft.) Long Service Hoses & Storage Attachment Burst Pressure: 3000 PSI Working Pressure: 600 PSI 2-1/2" Gauge (Low): 0-200 PSI With 0-30 Vac, -40-35 C 2-1/2" Gauge (High): 0-500 PSI, -20-70 C Quick Connect/Disconnect Couplers For High/Low Side Fittings Couplers Have A Shut Off Valve To Prevent Loss Of Refrigerant High Pressure Charging Hose w/Knurled Fittings Construction: Machine Aluminum, Brass Valves & Fittings, & High Pressure Hoses 1/2" ACME adapter For R134A