Robinair is an affiliated Bosch Tools brand and major supplier of specialized tools and repairing appliances. These vacuum pumps are designed specifically for air conditioning maintenance needs. With hassle free operation, these pumps will help make the job easier and faster. Robinair offers years of experience and manufactures these pumps for long lasting reliability. For use on A/C-R systems using CFCs, HCFCs, and HFCs in conjunction with mineral oil, ester oil, alkylbenzene oil, and PAG oil as lubricants.