The Cambro CBU183072VS4580 30" polymer shelving kit is a durable, space-efficient storage solution designed for commercial kitchens and restaurants. Part of the Camshelving® Basics Plus series, this 4-tier unit features three vented shelves for optimal airflow—ideal for maintaining uniform temperatures in walk-in coolers while reducing dust accumulation in dry areas. The included solid shelf is perfect for holding linens, leaky products, or small items, while the sturdy polypropylene construction ensures long-lasting performance even in extreme conditions, from -36°F to 190°F. With a total capacity of 1,800 lbs (400 lbs on the top shelf and 600 lbs on each of the three bottom shelves), this unit is built to meet the demands of high-volume commercial kitchens, restaurants, and foodservice operations. The brushed graphite gray finish adds a sleek, professional look, making it a smart choice for both functionality and aesthetics.