Velux TGF 022 0000 Sun Tunnel, 22" Tubular Skylight Acrylic Dome w/Low-Profile Flashing & Flexible Tunnel One piece metal pan flashing Low profile acrylic dome Parallel to the roof design Pivoting tunnel system 14 - 60 degree roof pitch Excellent for ease and speed of installation Easily bends around attic obstructions Helps diffuse sun light in short runs Ideal for shorter tunnel runs