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2 oz A/C Oil Injector R134aSee on Walmart
Keep an R134a refrigerant cooling system in working order with the Mastercool 82375 2-oz A/C Oil Injector. Designed for professional HVAC technicians, it features a flow direction arrow as well as 1- and 2-oz capacity markings on the rugged metal housing. This refrigerant oil injector has a needle valve for connecting to hoses and offers the option of adding oil after evacuation or during recharge. It's also suitable for injecting dye and detecting leaks in the system. 2 oz A/C Oil Injector R134a:... read more.