Filter Carbon Replacement Filters for Drinkwell Dog & Cat Fountains, 3 count
By Filter
$7.95 Chewy Price
($2.65 /ea)
$5.17 First Time Autoship Price
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3 Customer Questions
can I use these on the swan cat fountain?
What are the measurements for this filter?
Answer by • Jun 06, 2023
This filter measures approximately 5.5 inches long x 3.3 inches wide x 0.1 inches thick.
Do I put the black side of the filter towards the front or the back of the fountain?
Answer by • Jun 27, 2025
It was originally recommended that the black side of the filter face the bowl and this is reflected in some manuals. However, with that being said, it was later determined that the filter will be equally effective in either direction. So it will be perfectly fine, whichever way your filter is oriented.

