Boost your storage capabilities with the RW Base 4-Tier NSF Green Epoxy Shelving Unit. These steel shelving units are designed to hold up to 450 pounds each. The green epoxy coating ensures corrosion resistance, ideal for humid settings like walk-in coolers or freezers. Featuring vertical ribs, these wire shelves provide stability to avoid tipping. The vented design of these storage shelves enhances air circulation and reduces dust buildup, keeping items fresh. Posts and 32 split sleeves allow for adjustable shelf heights. The casters included make these NSF-certified shelves easy to move. Each shelf measures 18 inches by 48 inches by 1.5 inches, with posts standing 74 inches tall. Casters are 5 inches in diameter. Each order includes 4 shelves, 4 posts, and 4 casters.