Our MaxAir frames are constructed from angle iron steel. We employ a wiggle wire design for spring attachment that reduces friction at the spring attachment point for added durability against frame wear. The frames are treated with a special powder-coating process that protects the frame from rust and wear. Our frames come in multiple pieces for ease of handling and installation. This design contributes to the longevity of the product as well as ease of installation.
*Tax Notice: All orders shipped to the state of Michigan are subject to sales tax.