PROTECH sight glasses provide a quick visual diagnosis of refrigerant and moisture levels within a system. The sight glass indicates if the system has the proper refrigerant level, a restricted drier or excessive pressure drop and provides early warning that a potential failure exists that could result in corrosion, chemical damage, restricted flow, or even compressor failure.

a· Hermetic design minimizes possibility of refrigerant leakage

a· Premium patented 3% high accuracy moisture indicator (compare to 10% on competitive models) with accurate color calibration at low ppm levels

a· All brass corrosion resistant body and solid copper fittings

a· Suitable for R-22 and R-410A, 680 psig maximum working pressure