This is a Sources Sought notice for brand-name Affinisep Solid Phase Extraction (SPE) media, required for critical chemical agent testing at the U.S. Army Dugway Proving Ground. The procurement includes specific AttractSPE® disks and pads, along with protective shipping containers, with delivery required no later than September 30, 2026. Supplies must be exact Affinisep brand, from a single production lot, and shipped directly from the manufacturer to prevent chemical degradation. No budget information is specified. Performance of services will be at Dugway Proving Ground, Utah.