This Febi pollen/cabin filter is designed as a direct replacement for your vehicle's original filter. It is compatible with various Audi and VW models, including the Audi TT (8N3, 8N9) 1.8 from 1998-2006 and the VW Passat (3B3, 3B6) from 2000-2005. The filter features an activated carbon filter insert to help remove impurities from the air entering your cabin. The dimensions are 280 mm in length, 25 mm in height, and 206 mm in width. It weighs 0.225 kg. Please use the make model tool to ensure fitment for your specific vehicle. If you are unsure about compatibility, please contact us. Cross references include: 1A FIRST AUTOMOTIVE C30111, K301113F; 411/1A.Z. Meisterteile AZMT-41-010-1378, AZMT-41-010-1781; AKRON-MALÒ 1530052; AP XENERGY X10.