Copper spun fiter drier is widely used in air conditioning refrigeration system, with brass flare nuts, which is conveniently connected in a/c copper cooling cycles and helpful to move for refrigerant R22, R410a etc smoothly. Available sizes for flare nuts like 1/4″, 3/8″, 1/2″, 5/8″ as well 3/4″, and copper filter ranges for diameter 16mm, 19mm, 24mm and so. Additionally, the drawing of OEM request welcome for us. Sure, 100% test done before making shipment.