The Metro PR-183074K3-A-4 is a durable shelving unit designed for versatility and strength. Measuring 18"W x 30"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. Included are four bags of split sleeves for secure assembly, two sturdy metal posts for enhanced stability, and eight MetroMax Q intermediate S-hooks for additional storage options. This unit is NSF certified, making it suitable for various commercial and industrial applications.