The Cambro CBU214284VS4580 is a durable all-plastic shelving unit designed for versatile storage solutions. Measuring 21"W x 42"L x 84"H, this Camshelving® Basics Plus Starter Unit features four tiers, including three vented and one solid polypropylene shelf plate, all equipped with Camguard® antimicrobial protection to inhibit the growth of bacteria. It can withstand extreme temperatures ranging from -36°F (-38°C) to 190°F (88°C), making it suitable for various environments. The unit includes four composite posts with leveling feet for stability, pre-assembled post connectors and wedges for easy assembly, and eight traverses along with four bags of dovetails (four each of A & B). Each shelf has a capacity of 600 lbs, with the top shelf supporting up to 400 lbs, and a total maximum capacity of 1,800 lbs. Finished in brushed graphite, this shelving unit is NSF certified for safety and quality.