Refrigeration Hardware Supply Corporation has been offering heating, ventilation, air conditioning, and refrigeration services and products for more than 55 years. It provides a wide range of latches, lift hinges and steel safety latches. The company specializes in various products and services that include fan blades, heaters, thermometers, evaporation coils, strip curtains, wire shelves, door-closer gaskets, electrical motors, handles, hinges and pivot hinge rollers. The company offers residential services that include refrigeration system servicing. It also provides convenience products, such as house humidifiers and ductwork modifications. Its Web site provides several online services, including credit application forms and order forms for customized products. The company is located in Sun Valley, Calif.