calibration not required labels for sale, brand-new and used.

Product Name Fireflya„? Dual Aluminum Manifold Gauge Set Features and Benefits: Firefly features a magnifying glass on front of the sight glass that is backlit with both white and blue LED's to illuminate contaminants/dye Fine throttle valves for liquid charging and blended refrigerants Ergonomic heavy duty valve handles with calibration rings 72" Hoses with Acme quick disconnect fittings Blow molded case Face dials in F degrees feature color coded refrigerant types R-404A, R-22, R410A.