Waveguide Sections from Fairview Microwave are available with WR-12, WR-15, WR-19, WR-22, WR-28, WR-42, WR-51, WR-62, WR-75, WR-90, WR-112 and WR-137 waveguide sizes. Fairview Waveguide Sections have CPR-137G, CPR-90G, UBR120, UBR180, UG-344/U, UG-383/U, UG383/U-Mod, UG-385/U, UG-387/U, UG-39/U, UG-419/U, UG-51/U, UG585/U, UG595/U and UG599/U flange sizes. Waveguide Sections have lengths up to 12 inches long and frequencies ranges starting as low as 5.85 GHz and as high as 90 GHz depending of the specific waveguide section.