The Cambro EXMU214278V5480 is a durable all-plastic shelving unit designed for versatility and strength. Measuring 21"W x 42"L x 78-1/4"H, this 5-tier mobile unit is engineered to withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C). It features five vented reinforced polypropylene shelf plates treated with Camguard® antimicrobial protection, ensuring a hygienic storage solution. The unit includes four composite posts, pre-assembled post connectors and wedges, and ten universal traverses, along with five bags of dovetails for easy assembly. Equipped with four premium swivel casters that have a total locking brake, this shelving unit offers mobility and stability. With a maximum capacity of 900 lbs., it is perfect for heavy-duty storage needs. The speckled gray finish adds a modern touch, and please note that this unit is part of a new product line and is not compatible with original Elements Series products.