Penn Air

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

• Fax Equipment & Supplies Whole & Manufacturers
• Heating Contractors

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Heating Contractors
• Telephone Apparatus Manufacturing > Telephone & Related Apparatus > Fax Equipment & Supplies Manufacturers
• Office Equipment Merchant Wholesalers > Fax Machines, Equipment & Supplies

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Heating Contractors
• Telephone & Telegraph Apparatus > Telephone & Related Apparatus > Fax Equipment & Supplies Manufacturers
• Office Equipment > Fax Machines, Equipment & Supplies