Master R1234yf Valve Core Tool SetMaster R1234yf Valve Core Tool Set Attaches to R1234yf Service Ports to Remove and Replace Valve Cores without Loss of Refrigerant Covers 17mm and 14mm High Low Side Service Ports Kit Includes: High Side 17mm Connector, Low Side 14mm Connector, Standard Valve Core Shaft, GM Large Bore Valve Core Shaft, Eaton R134a R1234yf High Side Valve Core Shaft Related Parts KA54438,KA54439,KA54440,KA54441,KA54442 Specifications Product Condition: New 100% brand