R1234yf couplers (83834, 83934). 2 12 mm male x 14 mm female R1234yf adapters (83735). Refrigerant Compatibility: R1234yf and R134a. R1234yf Couplers: High side and low side couplers (83834, 83934). The R1234yf/R134a Aluminum Manifold Gauge Set can also be referred to as dual refrigerant manifold gauge set, R1234yf manifold gauge set, R134a manifold gauge set, automotive A/C manifold gauge kit, and aluminum manifold gauge set.
