DML 304s 1/2"ld filter drier — Danfoss, OEM manufacturer part number 023Z4587. Verified technical data: Mod.nr. = 023Z4587. Applications: refrigerant liquid-line filtration, moisture and acid capture in HFC / HFO refrigeration systems. Danfoss is a leading manufacturer in this segment; the 023Z4587 sits within the Danfoss filters & driers range. See our companion Danfoss product family listings for adjacent variants and accessories.