4' Cellular AntennaDigital Antenna's 1100 series antennas with a collet ferrule ensure no cable twisting and allows the antenna to be removed when needed. This new technique allows the use of existing coax or a new run of premium low loss cable. A taperedcollet securely locks Digital Antenna's 1100 series antenna to the bottom ferrule which mounts standard 1-14 threads. All marine antennas are manufactured in the USA with 316 surgical stainless, UV stable high gloss finish and precision soldered components.Features:Sleek, rugged designLocking collett allows antenna to be attached without twisting cableLarge connector pass thruMounts to standard 1-14 mount or mount with U-bolt to a poleThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.