The Metro PR-183674K3-A-4 is a durable shelving unit designed for versatility and strength. Measuring 18"W x 36"D x 74"H, this Super Erecta Pro® add-on unit features four corrosion-resistant shelves equipped with removable polymer shelf mats for easy cleaning and maintenance. The unit includes four bags of split sleeves for secure assembly, two sturdy metal posts for enhanced stability, and eight MetroMax Q intermediate S-hooks for added functionality. NSF certified, this shelving unit is ideal for both commercial and residential use, providing reliable storage solutions in various environments.