Maryland State Automotive Business Locations Submit your company | Return to the Map Page | Search for a company S e a r c h   D i r e c t o r y Advanced Product Distributors, Inc. Distributor of advanced, unique, high-quality automotive chemical products: GTA Fuel Enhancer, Duro-Care for vinyl and leather surfaces and Militec-1. 601A Lofstrand Lane Rockville, MD 20850 Contact Name: Alan Roth Phone: Toll-Free Phone: (800) 421-1048 Fax: Email Address: alanroth@apdinc.com Web Address: http://www.apdinc.com