Lomanco® Roof Louver Aluminum Brown Color:Brown split-tip fibers collect fine dirt

split-tip fibers collect fine dirt and dust

what IS that

Threaded thru pivot bolt keeps blades in adjustment

safflower and black oil sunflower

Lomanco® Roof Louver Aluminum Brown Color:Brown split-tip fibers collect fine dirtLomanco 500 & 600 Series Pan Style Includes 8x8 perma coated screen for added protection. Flange on vent stack for superior weather protection. 550 PRO has one piece molded plastic collar for added protection and aluminum top and bottom. 550 PRO G has one piece molded plastic collar for added protection and galvanized top and bottom. Lifetime Limited Warranty 550 Pro Series. Models 600 S and 550 S have a tall throat to allow room for air circulation