This Pollen / Cabin Filter is manufactured by Blue Print and is designed for various BMW models including 523 E39, 530D E39, M5 E39, 528 E39, and 520 E39. It features an Activated Carbon Filter type and has dimensions of Length: 262 mm, Height: 32 mm, and Width: 198 mm. The filter weighs 0.292 kg and is classified as a Filter Set, cabin air. Please use the make model tool to check compatibility with your vehicle. If you are unsure about fitment, please contact us. These products are intended for use as originally intended and should be installed by a competent individual. Fitting instructions are usually not supplied.