1/4" R12 to R1234YF Coupler #3625
- 1/4" male flare (R12/22) to 1234yf coupler
- Low side
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R12 to 134a High Side Thread Down Coupler #3070
With 1/4" ends to fit R12 gauges. Thread down couplers are used for hard-to-reach schrader valves.