This is a Small Business Set-Aside solicitation for commercial items under NAICS 311999, with all responsible sellers eligible to bid. The procurement uses an online competitive reverse auction facilitated by Unison Marketplace, where bidders submit descending price bids through the Unison portal. Sellers must submit their pricing through the online exchange, and registration and bidding are free. Delivery is FOB destination to Tucson, AZ 85756. Interested sellers should review the attached line items and submit any questions via the Unison Marketplace platform.