RSD is the largest independently owned refrigeration parts and HVAC equipment wholesaler in the western United States. We have been serving the west since 1907, recently celebrating 113 years as a company. RSD has grown to include 80 locations covering 10 western states, including Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, and Washington. This is the story of how it all happened. Back in 1907, the Starr Piano Co. (parent company to Gennett Records) opened a Pacific Division in California.