NIGP 17532: Filtering Apparatus and Filters (for Liquids)

NIGP 17532 Filtering Apparatus and Filters (For Liquids), an Item code, covers the supply and installation of liquid and air filtration media, custom-fabricated filter frames, filter replacement consumables, and associated filter maintenance services procured by state and local governments for operational, facility, and safety-critical applications. State and local buyers under this code include school districts, county fire and rescue departments, and state natural-resource agencies. The work ranges from quarterly HVAC filter change-outs across multiple school buildings with custom frame fabrication and installation labor, to specialized filtration components for hatchery and research operations, to filter supplies and maintenance services for self-contained breathing apparatus systems used by emergency responders. Issuing bodies are diverse in jurisdiction type and size, from large county fire departments procuring as part of comprehensive equipment refresh cycles, to school districts managing district-wide facility services, to state agencies supporting specialized research infrastructure.

Recent activity spans Georgia and Mississippi. Fulton County, Georgia posted an IFB for fire and rescue equipment and SCBA maintenance services (response due July 28, 2026) that includes breathing air system filters and consumables as part of Group VI comprehensive maintenance. Cherokee County School District in Georgia solicited an RFP for HVAC air filter services (response due May 28, 2026) covering approximately 5,085 filter units across 57 facilities on a quarterly replacement cycle, with custom steel frames, Merv 8 or Merv 9-rated media, and installation labor. The State of Mississippi posted an IFB (response due May 29, 2026) for filtration components and associated items supporting an Oyster Hatchery and Research Center. School districts appear to be active repeat buyers, with standardized filter specifications, high-volume quarterly replacement cycles, and single-award all-or-none structures favoring vendors capable of managing multi-site logistics and inventory management.