National Waterworks

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

• Water Treatment Systems Equipment Service & Supplies
• Waterworks Equipment & Supplies

North American Industry Classification System (NAICS) Categories:

• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers > Water Filters & Purification Equipment > Water Softening & Conditioning Equipment
• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers > Plumbing Fixtures & Fittings
• All Other Business Support Services > Water Services > Water Treatment Service
• All Other Support Services > Water Services > Water Treatment Service

Standard Industry Classification (SIC) Categories:

• Plumbing And Heating Equipment And Supplies (Hydronics) > Water Filters & Purification Equipment > Water Softening & Conditioning Equipment
• Plumbing And Heating Equipment And Supplies (Hydronics) > Plumbing & Hydronic Heating Supplies, Nec > Water Works Equipment & Supplies Wholesale
• Business Services, Nec > Water Services > Water Treatment Service