The Cambro CPU215484VS4PKG is a durable and versatile Camshelving® Premium Starter Unit designed for efficient storage in various environments. Measuring 21"W x 54"L x 84"H, this 4-tier shelving unit is built to withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C). It features three vented polypropylene shelf plates and one solid shelf, all equipped with Camguard® antimicrobial protection to ensure cleanliness and safety. The unit includes two unassembled post kits made of steel with a polypropylene exterior for added strength and durability. With eight traverses and molded-in dovetails for easy assembly, each shelf can hold up to 800 lbs, with a maximum capacity of 2,000 lbs. The speckled gray finish adds a professional touch, and the unit is NSF certified for quality assurance.