UNSPSC 47101551: Up flow filter

A filtering device that has the natural water flowing into the lower part of the tank and filtered to upper direction, and when filtered, the foreign substance arrested is lifted up by the air to release outside. At this time, the filter sand placed upwardly together with the impure substance is washed off and it is dropped to the filter layer again by washing and its own weight.

UNSPSC 47101551 Up flow filter is a Commodity code used to classify components and consumables for water and wastewater treatment systems. Recent state and local solicitations show the code capturing procurement for water treatment equipment and supplies in contexts spanning reverse osmosis systems, chilled and heated water distribution loops, membrane diffusers, polymer-based treatment components, and specialized filtration and flow management infrastructure. The actual buying pattern under this code reflects a fragmented market: universities, municipal water authorities, county treatment facilities, and special districts each source treatment-related components and parts to maintain or upgrade their systems, with no dominant repeat buyer emerging from the recent record. Work ranges from large capital projects for treatment plant improvements (such as reverse osmosis and microfiltration pretreatment systems) to routine consumables and maintenance parts (such as polymer supplies, diffusers, and sensor replacements) that keep treatment operations running day to day.

State and local solicitations under this code come from county water utilities (particularly in Florida and Georgia), independent school districts, municipal water departments, and regional treatment authorities. Texas State University issued an RFP for reverse osmosis and deionized water systems maintenance and services due August 10, 2026; Collin College in Frisco issued a Competitive Sealed Proposal for chilled and heating water loop extension due July 28, 2026; and the City of Phoenix issued an IFB for Sanitaire membrane diffusers due July 2, 2026. Gwinnett County in Georgia has posted multiple water utility procurements, including solids dewatering polymer supply (due July 30, 2026) and bypass pumping services (due July 10, 2026). The Tampa Convention Center solicited bids for chiller and cooling tower water treatment services due July 28, 2026. Geographic activity concentrates in Florida (Tampa, Winter Park, Holly Hill, Palm Bay, Collier County), Georgia (Gwinnett County, Atlanta, Calhoun, Cumming), and Texas (San Antonio area, Waxahachie, Huntsville), with ongoing activity across the Southeast and scattered Midwest and Southwest procurement offices. The code shows sustained but dispersed activity — no single region monopolizes opportunity, and the mix of issuing bodies suggests fragmented rather than consolidated purchasing.