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 is a Commodity code covering membrane elements and filter media used in water and wastewater treatment systems. State and local governments procure these products primarily for recycled water facilities, municipal water treatment plants, and wastewater systems—notably reverse osmosis (RO) and microfiltration (MF) membrane elements that serve as direct replacements in existing treatment trains. Recent solicitations show demand for specific membrane configurations meeting NSF certifications, dimensional compatibility with existing equipment, and performance warranties, with bidders required to demonstrate municipal experience and technical support capacity.

Water districts and municipal utilities dominate the issuing-body mix. West Basin Municipal Water District in California has issued multiple solicitations under this code—an RFQ for submerged MF membranes at the Edward C. Little Water Recycling Facility (due May 26, 2026) and an invitation for quotations for 852 RO membrane elements (8 x 40 inches) for the Carson Regional Water Recycling Plant (due February 26, 2026)—while Collier County, Florida posted a competitive bid for RO skid rehabilitation including 1,512 membrane elements (bid due April 24, 2026; anticipated budget $4,000,000). Recent activity concentrates in California and Florida, with West Basin appearing as a repeat buyer. The Forsyth County Schools solicitation for ERU filters (due July 7, 2026) and the City of Palm Bay laboratory testing services contract (closed March 17, 2026) show tangential activity but lack specificity on membrane scope. Evaluation criteria in recent RFQs and bids emphasize OEM status, three years of municipal experience, NSF/ANSI certification compliance, on-site installation support, and three-year performance warranties; West Basin's procurements offer small and local business enterprise (SBE/LBE) incentives with up to 6% evaluation reductions and require compliance with California Prevailing Wage Laws where applicable.