CMD~Side Mnt KIT 7' Top Suprt Side Mount Assembly. Mounts PD620 and PD755 Heavy Duty Super Stationmaster'" Antennas on square or triangular towers having round legs up to 2-3/8 in. (60 mm) in diameter. Consists of a dual grounded lower support system and an insulated upper support arm. These components are assembled using six (6) PD237 crossover plates and one (1) PD356A clamp set (supplied). PD561 Side Mounting Assembly mounts antennas 6 in. (152 mm) to 7 ft. (2.1 m) away from tower. Net wt. 50 lbs. (22.68 kg). Shipping volume 2.16 ft'. (.061 m').