UNSPSC 40161808: Biological filter media

A type of filter used to purify water through microbial action carried out on the surface of the media.

UNSPSC 40161808 Biological filter media, a Commodity code, encompasses filtration systems and membrane components that state and local water utilities and school districts procure for treatment plant rehabilitation, upgrades, and routine replacement. Recent solicitations show state and local buyers acquiring reverse-osmosis (RO) membrane elements, microfiltration (MF) membrane modules, and associated pressure vessels and mechanical assemblies for potable water treatment and water recycling applications. The issuing bodies span regional water districts, county water utilities, and school district facilities management, with water treatment operators representing the dominant buyer category. Work ranges from comprehensive rehabilitation of existing RO treatment trains—involving removal, replacement of hundreds of membrane elements and pressure vessels, and control system upgrades—to pre-qualification of replacement membrane suppliers for end-of-life equipment exchanges and smaller-scale filter purchases for school facilities.

Recent activity concentrates in Florida and California. Collier County, Florida posted an IFB (Bid No. 26-8646) on March 10, 2026, for the North County Regional Water Treatment Plant RO Skid Rehab project, calling for sealed bids due April 24, 2026, at 3:00 p.m., with a budget of $4,000,000 and mandatory pre-bid and site-visit on March 19, 2026; the scope includes replacement of 252 pressure vessels, 1,512 RO elements, and associated mechanical and control components, with bidders required to hold OEM status and documented experience with three municipal rehabilitation projects in the past ten years. West Basin Municipal Water District in Los Angeles County issued an RFQ for submerged microfiltration membrane pre-qualifications for the Edward C. Little Water Recycling Facility on June 25, 2026, with SOQ submission due May 26, 2026, seeking direct-replacement compatibility for existing Scinor and Memcor modules and requiring three years of municipal supply experience and NSF-60 and NSF-419 certification. Forsyth County Schools in Georgia posted a call for ERU filter purchase proposals due July 7, 2026, with limited sourcing detail available.