Photo 1 of 18+18 Replacement Filter for Smartoo 152oz/4.5L Wireless Pet Water Fountain, Cat Water Drinking Fountain Filter Replacement for Smartoo, Foam filter

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Photo 1 of 18+18 Replacement Filter for Smartoo 152oz/4.5L Wireless Pet Water Fountain, Cat Water Drinking Fountain Filter Replacement for Smartoo, Foam filter