MASTERCOOL 58490 Universal A/C Valve Core Remover/Installer, Black
- Designed for use of servicing valve cores in R134a and R12 systems.
- Universal valve core remover/installer for standard, JRA, Eaton and GM large bore valve cores.
- Access and change valve cores while the A/C system is still filled with refrigerant.
- Stainless steel ball valve design and patented thread remover lets the user block off the system while changing the valves cores, allowing for no refrigerant loss.