RSD is the largest independently owned refrigeration parts and equipment wholesaler in the western United States. Proudly serving the west since 1907. Our product offering covers air conditioning equipment, air filtration & IAQ products, brass filtering, copper piping, fittings, insulation & accessories and other tools and instruments for your refrigeration needs. We are near you with offices located in the states of Alaska, Arizona, California, Idaho, Montana, Nevada, Oregon, Utah, and Washington. Call today!