Comet 3D4M 13 ft Low Loss Mobile Antenna Coax Cable Assembly with SO-239/PL-259 Connectors. Can be used with a lip mount or used alone as permanent hole mount. An o-ring is included to seal moisture from migrating under the threaded nut holding the connector in place, but additional water-proofing using silicone is recommended around the connector threads. 13 ft of low loss coax, .25 inch outside diameter. The PL-259 connector is removable to reduce the coax length and/or easier routing of the coax cable.