Matrix

Matrix is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Heating Equipment Mfrs, Except Electric & Warm Air Furnaces
• Plumbing And Heating Equipment & Supplies Wholesale

North American Industry Classification System (NAICS) Categories:

• Heating Equipment (Except Warm Air Furnaces) Manufacturing
• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers

Standard Industry Classification (SIC) Categories:

• Heating Equipment, Except Electric And Warm Air Furnaces
• Plumbing And Heating Equipment And Supplies (Hydronics)