Industry Analysis

423710 Hardware Merchant Wholesalers
Comprises establishments primarily engaged in the merchant wholesale distribution of hardware, knives, or handtools.

423720 Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
Comprises establishments primarily engaged in the merchant wholesale distribution of plumbing equipment, hydronic heating equipment, household-type water heaters, and/or supplies.

423730 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
Comprises establishments primarily engaged in the merchant wholesale distribution of warm air heating and air-conditioning equipment and supplies.

423740 Refrigeration Equipment and Supplies Merchant Wholesalers
Comprises establishments primarily engaged in the merchant wholesale distribution of refrigeration equipment (except household-type refrigerators, freezers, and air-conditioners).