Our Filter Media Cups will replace all those filter socks you have hanging around!
Engineered by a fellow Saltwater Aquarist, our cups are designed as one solid piece. They're injection molded out of 6 differnt colors that are 100% BPA free in Bradenton Florida.
Filter Media Cups allow for any type of filtration medium. Just place filter media into cup and slide or drop into sump. That easy!