Numbers and Titles



Includesgravity and pressure filtration of liquids using conventional media such as sand, anthracite, granular activated carbon, garnet, diatomaceous earth, and greensand. Cloth filters, membrane filtration, mechanical straining and filtering.
Notesfilter underdrain systems are included under the individual filter types.
See06 80 00 for fiberglass or thermoplastic weirs, troughs, and baffles other than filter manufacturer-fabricated wash water troughs. 40 90 00 for process controls, and flow metering and turbidity measurement instrumentation. 46 63 23 for reverse-osmosis and nanofiltration membrane equipment.
46 61 13Filter Media
46 61 16Filter Surface Wash Agitators
46 61 17Filter Air Scour Equipment
46 61 19Wash Water Troughs
46 61 21Pressure Filters
46 61 23Gravity Filters
46 61 26High-rate Sand Filters
46 61 29Traveling Bridge Filters
46 61 33Microfiltration and Ultrafiltration Membrane Equipment
46 61 41Disc Cloth Filters
46 61 43Rotary Drum Cloth Filters
46 61 46Automatic Backwash Cloth Filter Equipment
46 61 53Cartridge Filters
46 61 63Bag Filters
46 61 73Automatic Straining Equipment