TOWER-FLO® Series TFB filters are available in ten models, differentiated by filter vessel size in diameter inches starting with the TFB-36 and increasing in 6" increments up to the TFB-96. All TOWER-FLO® Series TFB self-contained filter plants shall consist of the following major components: base, pump, motor, strainer, facepiping, controls, and filter vessel. The filter plant shall be designed for a maximum filtration rate of 20 GPM per square foot of filter surface area and be shipped as a complete, factory assembled and tested unit. Filter media and filter effluent laterals shall be shipped with the unit for field installation.