Use this adapter kit to retrofit your R-12 manifold hose set to be used on R-134a service ports.
Conversion adapters are designed in a 90 degree style. It has the R-134a quick disconect on one end and a 1/4" male flare (R-12) on the other. One each for high side and low side
Also included in this kit is short brass adapter to attach the Yellow hose (1/4") to the acme thread on R-134a can tap. It's threads measure 1/2-16 ACME F X 1/4 MF.