- Use to convert R12 or R134a manifold gauge sets to connect to R1234YF mobile A/C systems
- Brass high side manual coupler with M12 fitting
- Brass low side manual coupler with M12 fitting 2 Fittings (M12 x 1/4" SAE) to connect the high and low side manual couplers to 1/4" R12 hoses
- 2 Fittings (M12 x M14) to connect the high and low side manual couplers to M14 R134a hoses
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