The Cambro CBU215484S4580 is a durable all-plastic shelving unit designed for versatile storage solutions. Measuring 21"W x 54"L x 84"H, this 4-tier Camshelving® Basics Plus Starter Unit is engineered to withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C). It features four solid polypropylene shelf plates equipped with Camguard® antimicrobial protection, ensuring a hygienic storage environment. The unit includes four composite posts with leveling feet for stability, pre-assembled post connectors and wedges for easy setup, and eight traverses for secure shelf placement. Each shelf can hold up to 600 lbs, with a maximum capacity of 1,800 lbs, making it ideal for heavy-duty applications. Finished in brushed graphite, this shelving unit is NSF certified for safety and quality.