Core Removal Tool with access port. Specifically designed to valve off the system to remove valve cores, this core remover has a access port. The valve core can be completely removed and replaced without losing system charge. Removing valve core without losing system charge Quick connect 1/4 in., flare run 1/4 in., side port 1/4 in. Features a quarter turn ball valve shut-off fitting and o-ring seals Speed up evacuation, recovery, or recharging time through the full flow port