The filters in series 42-43, DF2-DF3 are designed for installation on commercial refrigeration systems and on civil and industrial air conditioning plants that use the following refrigerant fluids:
HCFC (R22)
HFC (R32, R134a, R404A, R407C, R410A, R507)
HFO and HFO/HFC mixtures (R1234ze, R1234yf, R448A, R449A, R450A, R452A)