This Danfoss Expansion Valve T2 is compatible with R448A/R449A refrigerants and can be used in walk-in freezers. It is a reliable and high-quality product from a well-known brand. The unit quantity for this valve is one, making it a perfect fit for a single unit system. This valve is ideal for those in the restaurant and food service industry as well as those in the business, office, and industrial fields. It is part of the refrigeration equipment and parts accessories category and can be found under refrigerator and freezer parts and accessories. Purchase this product with confidence knowing that you are getting a top-quality item that will meet your needs.