Why does ProSolar only use clear anodized Aluminum rail and not mill finish?
Anodized rails are better looking, corrosion resistant, wear resistant and abrasion resistant. Unfortunately, some companies offer mill finish aluminum rail to reduce production cost. This passes the hardship to the installer and homeowner. Anodized rails match the solar modules which use anodized aluminum frames. Mill finish rails tend to discolor and create installation problems. Homeowners prefer anodized rails.