The Cambro CBA184864S4580 is a durable all-plastic shelving unit designed for versatile storage solutions. Measuring 18"W x 48"L x 64"H, this 4-tier Camshelving® Basics Plus Add-On 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 that incorporate Camguard® antimicrobial protection, ensuring a hygienic storage environment. The unit includes two composite posts with leveling feet for stability, pre-assembled post connectors and wedges for easy assembly, eight traverses for added support, and four bags of dovetails (four each of A & B) for secure shelf attachment. Each shelf has a capacity of 600 lbs (400 lbs for the top shelf), with a maximum unit capacity of 1,800 lbs. Finished in brushed graphite, this shelving unit is NSF certified for safe use in food service and other commercial environments.