421720  Plumbing and Heating Equipment and Supplies (Hydronics) 
Wholesalers

This U.S. industry comprises establishments primarily engaged in 
wholesaling plumbing equipment, hydronic heating equipment, 
household-type gas appliances (except gas clothes dryers), and/or 
supplies. 

The data published with NAICS code 421720 include the following 
SIC industry:

     5074 (pt)  Plumbing and heating equipment and supplies 
		(hydronics)