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The Standard Replacement Filters for the Drinkwell Pet Fountains are quick-change filters used to capture debris and filter water, keeping it clean and fresh for your pet. Filters should be changed every four to eight weeks depending on the size and number of pets using the fountain. Filters keep the water fresh.

Filters Three Ways:
1. Duo density polyester pad captures debris.
2. Carbon impregnated pad for quick action.
3. Granulated carbon for extended action.

Instructions for Replacement Fountain Filters for the Drinkwell Pet Fountains:
Remove the housing cover and insert the filter cartridge down into the well in the housing. It fits in the well diagonally. The bottom of the filter is more narrow than the top and the black side faces outward (toward the spout). If the fit is too tight, it is either in upside down or in the wrong groove at the front (move it back one groove). Rinsing the filter before use will help remove any loose bits of charcoal, which are harmless.

These filters are specifically made to work with the Original Drinkwell Fountain, the Drinkwell Platinum Fountain or the Big Dog Drinkwell Fountain

Each package includes 3 filters