The Cambro CPHU214267S4480 is a high-density mobile shelving unit designed for durability and versatility. Measuring 21"W x 42"L x 67"H, this 4-tier unit can withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C), making it ideal for various environments. It features four solid polypropylene shelf plates enhanced with Camguard® antimicrobial protection to ensure cleanliness and safety. The unit includes two pre-assembled post kits, constructed from steel with a polypropylene exterior for added strength. With eight traverses and molded-in dovetails for easy assembly, it also comes equipped with four high-density casters and bumpers for mobility and protection. This shelving unit has a maximum capacity of 900 lbs and is finished in a speckled gray color, meeting NSF standards for quality and safety.