The CA-F72GF comes with cutting/tuning instructions. The internal element is removed from the bottom of the fiberglass, measured and cut to length, then reassembled.
SWR: 1.5:1 or less, bandwidth is 10MHz after tuning
Max power: 150 watts
Length: 42 inches
Weight: 2 lb 14oz
Construction: One-piece white fiberglass
Max wind speed: 135MPH