Eco-Fil Refugium Filter Sump with integrated refugium filtration systemLarge area for protein skimmerIncorporates a biological filtration areaPerfect for large installationsIncludes micron bag compact light drip tray and bio-ballsSizes125-Gallon Capa city -- 24 x 12.5 x 16 inches180-Gallon Capacity -- 30 x 12.5 x 16 inches240-Gallon Capacity -- 36 x 12.5 x 16 inches360-Gallon Capacity -- 36 x 12.5 x 20 inchesEco-Fil Hang-On Refugium Filter (60-Gallon Capacity Only)Ready-to-run external hang-on fi lterIdeal for small tanksEasy to install; requires no drillingAdjustable strainer boxIncorporates a protein skimmerFits all acrylic and glass tanks up to 60 gallonsDimensions -- 22.5L x 4.375W x 15.25H inche