Quick-Clear Water Polishing Pads, Mechanical Filter Media for Aquariums, 6-Pack,

Compatibility: Suitable for both freshwater and saltwater aquariums. Fluval Quick-Clear Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance.

eBay