A-1 Original Drain Doctor

A-1 Original Drain Doctor is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Backflow Prevention Devices & Services
• Plumbing Contractors
• Water Heaters

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Septic Tanks & Systems > Backflow Prevention Service
• Plumbing, Heating, And Air-Conditioning Contractors > Plumbing Contractors
• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers > Septic & Cesspool Equipment > Backflow Prevention Devices & Services
• Hardware Stores > Plumbing & Heating Supplies Retail > Water Heaters

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Septic Tanks & Systems > Backflow Prevention Service
• Plumbing, Heating And Air Conditioning > Plumbing Contractors
• Plumbing And Heating Equipment And Supplies (Hydronics) > Septic & Cesspool Equipment > Backflow Prevention Devices & Services
• Hardware Stores > Hardware Stores, Nec > Water Heaters