R456A was designed to extend the availability of R-134a in automotive MVAC while providing a cooling capacity boost for older vehicles.

R456A is a drop-in and go replacement, no oil changes or other changes are required.

Since R456A utilizes a HFO refrigerant (R-1234ze), vehicle service can utilize a value added up sale of Shrieve’s Zerol HFO additive.

R456A lowers the GWP of the R-134a system by over 50% (from GWP 1,430 to GWP 687) giving regulators peace of mind that the existing R-134a fleet will “age out” gracefully.