This U.S. Census Bureau NAICS-based industry comprises establishments primarily engaged in buying or selling hardware, knives, or hand tools; plumbing equipment, hydronic heating equipment, household-type gas appliances (except gas clothes dryers); warm air heating and air-conditioning equipment and supplies; and/or refrigeration equipment (except household-type refrigerators and freezers) on a commission, brokerage, or agency basis for others through a sales force rather than through electronic means such as the Internet.

Cross-References. Establishments primarily engaged in--

Merchant wholesale distribution of hardware, knives, or hand tools; plumbing equipment, hydronic heating equipment, household-type gas appliances (except gas clothes dryers); warm air heating and air-conditioning equipment and supplies; and/or refrigeration equipment (except household-type refrigerators and freezers)--are classified in Industry Group 4237, Hardware, and Plumbing and Heating Equipment and Supplies Merchant Wholesalers; and

Bringing together buyers and sellers of goods using the Internet or other electronic means and generally receiving a commission or fee for the service--are classified in Industry 425110, Business to Business Electronic Markets.