Technician A says the CFC-12 (R-12)service manifold hose fitting must be 1/2-inch male refrigerant flare nut at each end. Technician A says HFC-134a (R-134a)service manifold hoses use an ACME female nut.Who is correct?

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The Answer of Technician A says the CFC-12 (R-12)service manifold hose fitting must be 1/2-inch male refrigerant flare nut at each end. Technician A says HFC-134a (R-134a)service manifold hoses use an ACME female nut.Who is correct?

Technician a Says the CFC-12 (R-12)service Manifold Hose