HVAC AC MANIFOLD GAUGES R410A R134A W/3 CHARGE HOSES Quick Adapter &2 ACME For 48 STATES Two Way R134A R410A & R22 Manifold Gauges A/C Tester Freon gas Service Diagnostic AC AC A/C Manifold Gauge Set Blue Gauge (low): 2-1/2" diameter, 0-550 PSI Red Gauge (high): 2-1/2" diameter, 0-750 PSI Aluminum housing Manifold Works For R410, R22, R134a Extra large sight glass Fahrenheit Degree (F) Reading Includes 3 color-coded 60" long service hose ( Burst pressure: 4000PSI Max working pressure 800PSI) Yellow ,Red and Blue 60" long charging hose R12, R22, R134A x 60 " with knurled fittings SAE ( 1/4" FFL x 60 " with knurled fittings) R134A Quick disconnect couplers For high/low fittings included and Each coupler have a shut off valve to prevent loss of refrigerant 1/2" ACME ADAPTER IS INCLUDED (1/2" Female to 1/4" Male) 5/16" Adapter (1/4" Male to 5/16") w/ Valve Core pin Carrying Storage Case included *******NO INSTRUCTION OR MANUAL