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Sporlan 404407 Filter Drier Core 30067439-890 What is the best wayThe Sporlan 404407 is a premium 100 cubic inch filter drier core engineered for maximum moisture and acid removal in high capacity refrigeration and air conditioning systems. As an industry standard activated core, this unit offers a high performance desiccant blend specifically formulated to protect compressors and thermal expansion valves (TEVs) from the damaging effects of moisture, organic acids, and solid contaminants. This part serves as the