The Sporlan Controls 404555 Refrigerant Filter Element is an essential part used in HVAC systems especially in air conditioning and refrigeration. This filter element operates in a way that it removes moisture, acids and solid contaminants and thus prolongs the life of the system and increases its efficiency. It works through stopping damaging contaminants from circulating through the... https://www.partshnc.com/refrigerant-filter-element-for-sporlan-controls-part-404555