Penner Underground

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

• Heat Pumps

North American Industry Classification System (NAICS) Categories:

• Household Appliance Stores > Air Conditioning & Heating Systems > Heat Pumps

Standard Industry Classification (SIC) Categories:

• Household Appliance Stores > Air Conditioning & Heating Systems > Heat Pumps