Mastercool Visual Inspection Sight Glass Kit with R134A Quick Couplers (53376)

Visual Inspection Sight Glass Kit with R134A Quick CouplersAllows user to visually inspect the refrigerant in any R134a or R1234yf system and identify excess dye, oil or debrisUnit can be used with a standard vacuum pump or with the vacuum function on your R/R/R machineAllows the user to extract a small portion of the refrigerant for actual visual inspectionLeak free, ball valve controlled and will allow the refrigerant extracted for the visual inspection to be deposited back into the system