1/4'' valve core remover with access port by JB (A32525N). Specifically designed to valve off the system to remove valve cores, this core remover has the access port. Features a quarter turn ball valve shut-off fitting and o-ring seals the valve core can be completely removed and replaced without losing system charge. Speed up evacuation, recovery, or recharging time through the full flow port. Storage area houses space valve cores. Made in the USA.