Cambro, EXA213084V5480, Camshelving® Elements XTRA Stationary Add-On Unit, 21"W x 30"L x 84"H, 5-tier, withstands temperature from -36°F (-38°C) to 190°F (88°C), includes: (5) vented reinforced polypropylene shelf plates with Camguard® antimicrobial protection, (2) composite posts with leveling feet installed, pre-assembled post connectors & wedges, (10) Universal Traverses &(5) bags of 4 dovetails (10 left, 10 right), 800 lbs. capacity per shelf /2,400 lbs. max capacity, speckled gray, NSF (NOTE: This is a new product line. It is NOT compatible with original Elements Series products.)