Sink drain with overflow, Universal drain with non-return valve for washbasin, Sink drain with overflow (without hole)

General Description: The two filter cotton pads are specially designed for the Catlink Pro fully automatic smart cat litter box. These deodorizing cotton filters feature activated carbon for optimal odor control. Technical Specifications: Dimensions of one filter pad: 1 cm Quantity: 2 pieces Usage: It is recommended to replace both pads every three months to ensure optimal filter performance.