The Hydrotech 2200 Compact is an enhanced design of the disc filter, making it suitable for tertiary polishing up to 4.5 mgd per unit. Its smaller size saves 25% footprint and makes shipping, handling and installation more efficient, and all flange connections are located at the front end to improve site flexibility and reduce installation costs. It also includes a higher allowable head differential, increasing the capacity per unit by up to 15%.