Waterfall Filter Mat -- Atlantic Models

These filter mats are meant as replacements for Atlantic Filter Falls models. Mats should replaced every 3 - 5 years, or when the mats fall apart. Filter mats provide a place for beneficial bacteria to grow and filter fine debris from the water. Made of poly fiber. Sold individually. Read our blog to find out if your filter mats need to be replaced . Model BF 1600 (Small) BF 1900 (Medium) BF 2600 (Large) Dimensions 16" x 12" x 2" 18.5" x 16.5" x 2" 26" x 17" x 2" Shape Oval Octagon Octagon