Keller Supply Company is one of the leading, family-owned wholesalers of plumbing, pool and spa, and heating, ventilation and air conditioning products in the Pacific Northwest. The company manages more than 50 branches in over five U.S. states. It operates Leisure Supply, which has operations in California, Idaho and Nevada. Keller Supply Company serves clients in the residential and industrial markets. The company provides air handlers, hydronic coils, transformers, relays and gas valves. It manages Keller Air, which offers furnaces, burners, heat pumps and humidifiers from several manufacturers, such as Adams Manufacturing Company and White-Rodgers. Keller Supply Company provides shipping services..