Exclusive Design for PETKIT Litter Boxes: The PETKIT N50 2.0 Odor Eliminator is specifically designed for use with PETKIT PuraMax, PuraMax 2, and Purobot Max Pro self-cleaning cat litter boxes. Note: For PuraMax installation, remove the silicone cover from the waste bin lid. Not compatible with Purobot Ultra. Enhanced User-Friendly Case: Featuring a newly updated plastic case, the N50 2.0 ensures a clean and hassle-free replacement process, significantly enhancing user experience by keeping hands clean and making maintenance effortless. Quantity: 6PCS / 3PCS. Color: As shown. Material: Plastic. Package Contents: 6 * Cat Odor Removers / 3 * Cat Odor Removers. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowed error is +/- 1-3 cm.