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While some of these refrigeration expansion valves are designed for use in specific products, others are universal parts that work with any unit. These items are also made of durable materials like copper, which ensures they’ll last for years to come. Whether you own a cafeteria, restaurant, or diner, expansion valves are a must-have part that will keep your cold equipment running well and reduce the likelihood of spoiled food. For related products, check out our countertop freezers, bar back coolers, and school milk coolers. If you're wondering where to buy columbus showcase capillary tubes and expansion valves, we have a large selection of columbus showcase capillary tubes and expansion valves for sale at the lowest prices.