30/20/5pcs Replacement Filter For Cat Dog Water Drinking Fountain Activated Carbon Replaced Filters Fountain Dispenser Feeders and daily kitchen essentials Don't miss out on the

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30/20/5pcs Replacement Filter For Cat Dog Water Drinking Fountain Activated Carbon Replaced Filters Fountain Dispenser Feeders and daily kitchen essentials Don't miss out on the30 20 5pcs Replacement Filter For Cat Dog Water Drinking Fountain Activated Carbon Replaced Filters Fountain Dispenser Feeders 1. Rinse the filter with water about 10 minutes before use. 2. It is recommended to replace the filter every 4 to 6 weeks. It depends on your purpose. 3. The use of high density and high content activated carbon filters can effectively maintain water quality, increase oxygen content, and keep cats healthy.