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The DiversiTech DAD053S 3/8 in. sweat 5 cubic in. liquid line drier has a high moisture and acid capacity along with maximum filtration capacity. It''s compatible with all existing and new refrigerants and blends including 134a, 401A/B, 402A/B, 404A, 407A/B/C, 410A, 502, and 507A. It''s powder paint exterior coating surpasses the 500 hour ASTM salt spray test and resists corrosion.