Ceramic Cat Water Fountain Filters, 12 Filters and 12 Sponges | Triple-Layer Filter, Cotton, Activated Carbon and Ion Exchange Resin, Pre-Soak 5 Minutes, Replace Every 1-2 Weeks, Verify Fit

Complete Replacement Set: Contains 12 replacement filters and 12 pre-filter sponges for ceramic cat water fountain models. Match the filter and sponge shapes to your existing parts before ordering; these are replacement components, not a complete fountain.
Triple-Layer Filtration: Each cat fountain filter combines a cotton layer, activated carbon and ion exchange resin. The layers help trap debris, minimize odors and condition the water, while the separate pre-filter sponge helps catch hair and larger particles before they reach the pump.
Prepare Before Installation: Soak each filter in clean water for 5 minutes, then rinse it for 30 seconds to remove loose activated-carbon particles. Install the filter and pre-filter sponge in the matching positions shown in the fountain instructions.
Routine Replacement: Replace the filter and sponge every 1-2 weeks, adjusting the interval for water quality, number of pets and fountain use. Inspect the filter sooner if debris accumulates, and clean the fountain reservoir and pump regularly to maintain water flow.
Compatibility Check: Designed for ceramic cat water fountains that use the same filter and square sponge format