4ZB10 High Filling Flow Double Acting Pneumatic Refrigerant Recovery Pump for R-11,R-12,r-134A Transferring 4ZB10 High Filling Flow Double Acting Pneumatic Refrigerant Recovery Pump for R-11,R-12,r-134A Transferring,4ZB10 10:1 ratio pneumatic refrigerant booster pump has similarities in functionality and application scenarios with 4ZB06&ZB10, and is suitable for refrigerant(such as R12,R22,R23, R32,R123, R134a,R290,R404,R410a, R600a,R1234YF, etc.) boosting and recovery and injection of liquefied gases .