This U.S. Census Bureau NAICS-based industry comprises establishments primarily engaged in the merchant wholesale distribution of valves and fittings, excluding plumbing, heating, hydraulic, and pneumatic valves and fittings.

Cross-References. Establishments primarily engaged in--

• Merchant wholesale distribution of plumbing and heating valves and fittings--are classified in U.S. Industry 423720, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers; and
• Merchant wholesale distribution of hydraulic and pneumatic valves and fittings--are classified in U.S. Census Bureau NAICS-based industry 42383022, Hydraulic and Pneumatic Parts, Accessories, and Supplies Merchant Wholesalers.