An easy and convenient way to keep your pet fountain sparkling clean.
The Drinkwell Premium Filters feature compartments which evenly distribute the charcoal for a longer lasting, deeper water filtration. A clean filter maximizes water filtration. This filter should be changed every 2-4 weeks to maintain water freshness.
Compatible with Drinkwell Original, Platinum, Big Dog, Multi-Tier, Outdoor Dog, Mini, and Zen fountains