Robinair 18340 Valve Core Remover Kit with Storage Case Robinair's A/C Valve Core Removal Tool Kit allows removal of valve cores without losing the system charge Designed specifically for use during evacuation or recharging of any system with valve core-type access ports Kit includes: standard, 8 mm, 10 mm, GM high flow, and JRA valve core extractors; R-134a low-side and high-side body assemblies with side ports; and R-134a low-side andhigh-side port adapters Rugged blow molded plastic case keeps all components contained and organized so they are ready when you need them Includes usage guide