EAK0030C01AB Filter/dryer kit is used on A/C service units, such as early R12 models and later R134a models including EEAC316, EEAC318, EEAC319 and EEAC320. Also replaces White Industries # 1-13481 Filter. This is the filter/dryer that should be changed regularly depending on usage of unit. Designed to protect recovery systems from debris and deposits that would normally harm your unit. Large filter capacity provides long life. All steel construction with enamel finish resists corrosion and rusting. 1/4" inlet fitting and 3/8" outlet fittings are standard. (EAK0030C01AB)