... line 4.Accept T/T,L/C,D/P This series of filter core and removable filter cylinder shell are the ... most perfect filter core.Suitable for refrigerant: R-12, R-22, R-134a, R-404a, R-507, R-410A, R-407C ... etc HS Series100% of the molecular ... the dried wax filter.Suitable for refrigerant: R-12, R-22, R-134a, R-404a, R-507, R-410A, R-407C ... etc.. HW Series95% of molecular sieve ...