Size:The size of the replacement filter is 18.0*9.5cm, The size of the sponge is 2.5*2.0cm. Measure your fountain and check whether the filter can be integrated into your fountain before ordering.
Compatibility: Compatible with 2.1L Cat Fountain PLWF002.
High-quality: The replacement filter uses natural nonwovens, coconut shell activated carbon and ion exchange resin. It can catch pet hair and dust, effectively filter dirt, and remove bad odors in the water.
Easy to use: Just put the raised side up and the flat side down, easy to install. Rinse the filter with water before use.
Tips: It is recommended to change the replacement filter every 2-4 weeks to keep the water clean. We always cares about the drinking water health of pets and helping them enjoy drinking water.