This Roller Mat Filter is specifically designed to fit in the overflow chamber of the Waterbox all-in-one nano reef tanks. This roller mat works with
Setting-Up Waterbox Peninsula 25 & Cycling - Nano Reef Tank (No Skimmer)
WaterBox Nano Reef Roller Mat - Fits 10g / 20g Cube & 15g / 25g Peninsula
AQUARIUM Automatic roller filter in a 20 gallon sump
Waterbox Cube 25
Waterbox Roller Mat Filter Fits 10g, 20g Cube, 15g, 25g Peninsula - Canada
Waterbox Roller Mat Filter Fits 10g, 20g Cube, 15g, 25g Peninsula - Canada
Waterbox 25 Peninsula - Canada
Waterbox Roller Mat Filter Fits 10g, 20g Cube, 15g, 25g Peninsula - Canada
Ohio - Filters - Drygoods - IseaLive Waterbox Filter Roller (10g, 20g cube, 15g, 25g peninsula)