Features and Benefits: The new side entry can tap is like having three tools in one Unique design will work on all R134a (2-7/8") R12 (2-1/2") and oil charge (2") cans The outlet port offers a 1/2" ACME and 1/2" FL fitting with an internal check valve to prevent system backflow The "pliers style" grip is easy to use and has a positive locking latch to insure secure engagement