R410A R134A R22 4.8 CFM Vacuum Pump HVAC A/C Refrigerant W/4VALVE MANIFOLD GAUGE 4 VALVE R134A R410A & R22 Manifold Gauges A/C Tester Freon gas Service Diagnostic AC W/ 4 HOSES AC A/C Manifold Gauge Set,Aluminum housing ,Includes 3 color-coded 60" long service hose + 1black 60" hose Works for R410, R22, R134a ,BLACK HOSE Burst pressure: 4000PSI ,BLACK HOSE Max working pressure 800PSI,Extra large sight glass Celcius Degree (C) Reading,Quick disconnect couplers for high/low fittings includedEach coupler have a shut off valve to prevent loss of refrigerant Blue Gauge (low): 2-1/2" diameter,Red Gauge (high): 2-1/2" diameter,Red and Blue 60" long charging hose R12, R22, R134A x 60 " with knurled fittings SAE ( 1/4" FFL x 60 " with knurled fittings) (3000PSI 600PSI)