UNSPSC 47101560: Filter underdrain equipment

A structure that improves the equal filtering and backward flow functions in the rapid filtration.

UNSPSC 47101560 Filter underdrain equipment, a Commodity code, describes state and local procurement of water treatment system components and maintenance services, including reverse osmosis systems, water softening and conditioning equipment, chemical treatment programs, membrane diffusers, polymer blending units, lime softening improvements, and related installation and service work at municipal water and wastewater facilities. Recent solicitations show water departments, wastewater treatment authorities, school districts, and higher education institutions procuring system upgrades, replacement parts, and ongoing maintenance contracts to support drinking water production, reclamation, and treatment operations. Texas State University is soliciting maintenance and service proposals for reverse osmosis and deionized water systems with an August 10, 2026 response deadline; Collin College's Frisco Campus is seeking design and installation of chilled and heating water loop extensions under a Competitive Sealed Proposal due July 28, 2026; and the Tampa Convention Center is bidding water treatment services for central chilled water and cooling tower systems with responses due July 28, 2026. Issuing bodies span state universities, community colleges, municipalities, county water and wastewater authorities, and special districts, with activity concentrated in Texas, Florida, Georgia, California, and Arizona. Beyond these recent solicitations, the opportunity set includes single-source awards (New York Blower odor control systems at Collier County; Xylem Flygt OEM parts at Holly Hill; Chemco lime slaking systems at Holly Hill), design-build contracts for treatment plant expansions and PFAS remediation (City of Calhoun, City of Sanford), large capital projects for screen replacement and tank improvements (Orange County, Collier County), and recurring supply contracts for chemicals, diffusers, and specialized parts.

The code's activity reflects sustained capital investment in water system resilience and regulatory compliance, particularly PFAS treatment, membrane technology adoption, and equipment refresh cycles at aging facilities. Geographic concentration in Florida, Texas, and Georgia reflects regional population growth, water quality challenges, and infrastructure modernization funding. Pricing structures vary widely—capital projects range from roughly $375,000 (Huntsville wastewater bar screen) to $48.5 million (City of Sanford design-build), while parts and services contracts typically carry annual values in the low to mid-six figures with multi-year terms. Prevalent set-asides include SBE/MBE preferences in Texas (HUB requirements at Texas Tech) and DBE-Neutral programs (City of Phoenix), though no universal disadvantaged-enterprise restrictions appear across the code. Prevailing wage requirements apply where federal funding is present, and bond, insurance, and experience qualifications are standard across construction and design-build opportunities. The code's current activity suggests strong demand from water system operators managing aging infrastructure, regulatory mandates (PFAS, MCL compliance), and peak capacity expansions in growing metropolitan areas.