Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1, A2L, or A3: - HCFC (R22) - HFC (R134a, R32, R404A, R407C, R410A, R507) - HFO and HFO/HFC blends (R1234ze, R1234yf, R448A, R449A, R450A, R452A, R513A, R515A, R515B) - HC (R290, R600, R600a, R1270)