The Mastercool 58560 R134a Eaton (M8 & M10) Valve Core Kit allows the user to remove and install any R-134A valve core while the system is under pressure without losing the systems charge. The kit covers R134a systems for Eaton Style R134a valve cores
Product Features:
- Kit covers the Eaton Style R134a valve cores
- Heavy duty metal construction
- No refrigerant loss
- Includes blow molded case
- Eliminates the need to remove freon from the system.

