CABIN AIR FILTER - BMW X5/X6 2008- RCA305CPart No. RCA305C Type CABIN FILTER Brand RYCO Unit of Measure EACH Description Ryco Activated Carbon Cabin Air Filter Warranty Service Interval Type Panel Weight . 508kg Height 40mm Item Type Filter (Cabin Air) Outside Length 300mm Outside Width 145mm Features Protects vehicle occupants from allergy causing particles such as pollens, fungus spores, dirt, dust and bacteria. Filters out dirt and dust, which build up on the vehicle's interior surfaces.