The OP-120 will bolt directly to any standard C Band feed mount using 5.750″ 3 or 4 bolt hole pattern. The OP-120 will accept many different feed systems. (ARS-1 S Band feed or many of the KU-800 & KU-900 series feeds). The OP-120 will allow for 360° rotation of the mounted feed, making polarization adjustments easy and accurate. The OP-120 is an exclusive A.D.L. design made of die cast aluminum, powder coated paint and oven baked to 400°F for a long lasting finish.