Mainline Sales Inc. A full-service, manufacturer’s representative, serving the following markets:Plumbing (Residential & Commercial), Mechanical, Fire Protection, Industrial, Irrigation, Waterworks (Water & Sewer) ABOUT USPremier Manufacturers' Rep Firm We understand what it takes to be a premier ...
Mainline Sales is a full-service manufacturer’s representative, serving the following markets in California, Nevada, Arizona, and Hawaii.