NMO to SO-239: This NMO to UHF adapter converts an NMO Antenna Mount to a UHF-Female (SO-239) connector, works with mounting brackets or through hole designs, and requires a 5/ 8 inch (16 mm) mounting hole
Wide Application: NMO to PL259 Coax connector allows you to connect NMO mount antenna to UHF male PL259 connector; Typical applications include low band, UHF and VHF antennas to switch over from the PL259 without installing a new mount and coax cable
NMO Mount Cover: This nmo to pl259 Connector is a permanent mount comes with a waterproof cap, screw it on when remove the antenna, effectively isolating foreign objects, no need to worry about the water failure of the base when washing the car
Premium Quality: SO239 Coax adapter with 1 inch ( 2.64 cm) in length is made of pure cupper and nickel plated ensure low loss in signal transmission and good conductivity; Solid brass parts is perfectly fit on NMO antenna
Easily Swap Antennas: This NMO Mount adapter works as both an NMO mount as well as a PL259 mount for your antennas, allows you to swap several antennas (either a NMO or SO-239 style antenna) on the mount without changing or adding another mount