Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Water and Sewer Line and Related Structures Construction

Brick, Stone, and Related Construction Material Merchant Wholesalers

Roofing, Siding, and Insulation Material Merchant Wholesalers

Other Construction Material Merchant Wholesalers

Metal Service Centers and Other Metal Merchant Wholesalers

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Warm Air Heating and Air?Conditioning Equipment and Supplies Merchant Wholesalers

Refrigeration Equipment and Supplies Merchant Wholesalers

Industrial Machinery and Equipment Merchant Wholesalers

Service Establishment Equipment and Supplies Merchant Wholesalers

Other Miscellaneous Durable Goods Merchant Wholesalers

Other Chemical and Allied Products Merchant Wholesalers

Code	Description	Primary
423720	Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
221310	Water Supply and Irrigation Systems
237110	Water and Sewer Line and Related Structures Construction

THE PROFESSIONAL COMPANIES, INC.

NAICS Codes