Made of high quality material, professional and durable to use, long service life.Exquisite and delicate, highly matched with equipment.recommended replacement cycle is every 1-2 moom to maintain the best performance of the machine.Help your robot vacuum cleaner maintain the good cleaning performance.As part of normal maintenance, Easy to remove and replace.Product name:Vacuum Cleaner PartsCompatible: For Bissell 2037913/32R9Colour: blackMaterial: plastic+foamPackage Contents:3 * Cartridge filterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.