Twistable and flexible rectangular waveguide R84, with PBR/UBR 84 flanges. Length = 0.9m, core with environmental impact resistant molded rubber jacket. Hardware and gasket (for PDR/PBR flanges) included. FEATURES / BENEFITS Waveguide installation • The flexible and twistable rectangular waveguide component eliminates installation difficulties • It isolates vibration • It provides simple aid to positioning of antennas