The Metro PR-215474K3-A-4 is a durable shelving unit designed for versatility and strength. Measuring 21"W x 54"D x 74"H, this Super Erecta Pro® add-on unit features four corrosion-resistant shelves equipped with removable polymer shelf mats, ensuring easy cleaning and maintenance. It includes four bags of split sleeves for secure shelf placement and two sturdy metal posts for enhanced stability. Additionally, the unit comes with eight MetroMax Q Intermediate S-Hooks, allowing for convenient hanging of items. NSF certified, this shelving unit is ideal for both commercial and industrial applications, providing reliable storage solutions.