4Pcs Carbon Filter, 1Pcs Foam Pet Water Fountain Filters, Healthy Pet Drinkwell Replacement Premium Cotton Activated Carbon Pet Water Drinking Filter

Usage: -Replace more frequently with multiple pets using the fountain. -A small amount of carbon dust may be released for the life of filter which is not harmful to your pet. Specification: Material: Activated Carbon, Colth and Plastic Color: White Size: 2.3 x 0.8 x 1.8inch (L x W x H) Package included: 4 x Carbon Replacement filters 1 x Foam Filter

Activated carbon water filter made from coconut shells Removes bad tastes and odors from the water, keeping it fresh Change every 2-4 weeks to maintain water freshness