The Cambro EXA214264S4480 is a durable all-plastic shelving unit designed for versatility and strength. Measuring 21"W x 42"L x 64"H, this Camshelving® Elements XTRA Stationary Add-On Unit features four tiers that can withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C). Each shelf is made of solid reinforced polypropylene and includes Camguard® antimicrobial protection, ensuring a hygienic storage solution. The unit comes with two composite posts equipped with leveling feet, pre-assembled post connectors and wedges, eight Universal Traverses, and four bags of dovetails (eight left, eight right). With an impressive capacity of 800 lbs. per shelf and a total maximum capacity of 2,400 lbs., this speckled gray shelving unit is NSF certified for safety and quality. Please note that this product is part of a new line and is not compatible with original Elements Series products.