Mastercool R134a 1/4 SAE UV Dye Refrigeration Inline Oil Injector 53322
To inject the oil or dye, simply connect the injector to the low side of the A/C system and twist the handle until you reach the desired amount.
53322:REFILLABLE DYE INJECTOR
with (1/4"; Auto Shut-off Valve Connection) and 2 oz Bottle of Concentrated A/C Dye (25 Applications)
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