Legrand - On-Q WP3479IV NonRecessed Nickel FConnector, Ivory NICKEL-PLATED 1GHz KEYSTONE F-81 COUPLER: Works with all antenna and cable systems. KEYSTONE 1 GHz F-CONNECTOR: Also comes in contractor packs of 10 and 50 Keystone Coax inserts. NON-RECESSED KEYSTONE COAX INSERT: Flush hex nut does not allow coupler rotation. KEYSTONE INSERT: It is available in different colors  White, Light Almond, Black, Brown, Gray, Ivory.