Camshelving® Premium Add-On Unit, 21"W x 24"L x 84"H, 5-tier, withstands temperature from -36°F (-38°C) to 190°F (88°C), includes: (4) vented and (1) solid polypropylene shelf plates with Camguard® antimicrobial protection, (1) unassembled post kit (posts constructed of steel with polypropylene exterior), (10) traverses & molded-in dovetails, 800 lbs. capacity per shelf /2,000 lbs. max capacity, speckled gray, NSF