134a Can Tap
Screw on design for 134a.  Plastic top handle.

134a Can Tap - $7.00

Brass Bushing (Converts 134a can tap to use with R12 hoses/gauges) - 2.50
   3-in-1 Side Can Tap
3-in-1 side can tap.  Has output for either R12 or 134a.  This unique design covers 2 7/8in, 2 1/2in, and 2in charge cans.  Internal safety check valve prevents system backflow.

Mastercool 3-in-1 Side Can Tap - $12.50