DML 303S 3/8"ld filter drier — Danfoss, OEM manufacturer part number 023Z4585. Verified technical data: Mod.nr. = 023Z4585. Applications: refrigerant liquid-line filtration, moisture and acid capture in HFC / HFO refrigeration systems. Danfoss is a leading manufacturer in this segment; the 023Z4585 sits within the Danfoss filters & driers range.