Mainline offers a comprehensive range of plumbing fixtures, faucets, bath accessories, and high-efficiency HVAC systems for residential and commercial professionals.
Hoofdlijn is a trusted brand in the building and home improvement industry, providing a diverse portfolio of products designed for durability and performance. Primarily available through professional distributors, the Mainline catalog includes kitchen and bath faucets, tub spouts, towel bars, and rough plumbing components like expansion tanks and fire-rated outlet boxes.
In addition to plumbing fixtures, Mainline manufactures high-efficiency climate control solutions, including air conditioners and heat pumps equipped with smart diagnostics and variable speed technology. Mainline products are engineered to meet the rigorous demands of professional installers while offering modern aesthetics for homeowners.
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For assistance with Mainline faucets and bath accessories, you can email customerservice@1858brands.com or call the toll-free support line at 1-888-328-2383.
Mainline typically offers a 5-year warranty against defects in material and workmanship, as well as finish deterioration, for the original consumer purchaser.
To avoid voiding the warranty, do not use cleaners containing abrasives, ammonia, bleach, acids, waxes, or alcohol. Clean only with mild soap and water.
You can register your warranty online at the Mainline Collection website, specifically on the registration page.