The Cambro CBA215472VS4580 is a durable all-plastic shelving unit designed for versatility and strength. Measuring 21"W x 54"L x 72"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 three vented and one solid polypropylene shelf plates, all equipped with Camguard® antimicrobial protection to ensure cleanliness and hygiene. The unit includes two composite posts with leveling feet for stability, pre-assembled post connectors and wedges for easy setup, and eight traverses along with four bags of dovetails (four each of A & B) for secure shelf placement. Each shelf can support up to 600 lbs., with a maximum capacity of 1,800 lbs., making it ideal for heavy-duty storage needs. Finished in brushed graphite, this shelving unit is NSF certified for safety and quality.