The Bio 60 Wet/Dry Filter is the most complete filtration system for your fish only tank. While it can be used in a reef environment, it's self contained biological filter chamber allows for maximum performance in your display tank. This powerful filter includes large pre-skimming chamber that easily fits most in sump skimmers and an easy access drip chamber for mechanical filtration. As with all our Bio Filtration units, the Bio-60 can be used with external or internal pumps allowing you the flexibility to choose/change your pumping method without expensive conversions. BIO-60 Specifications: - Skimmer Chamber: 17.5" x 12" - Dimensions: 42L" x 18W" x 18H" - Bioballs: 7.5 gallons Max. Flow: 1,500 gallons - Rated for tanks up to 300 Gallons - High Quality cast acrylic construction - 3 year warranty