Amazon.com: N Female to N Female, 2-Pack N Barrel Connector Coupler Adapter, 50 Ohm for Wilson Cell Booster, WiFi Antenna, CB Radio, Analyzer, Coaxial Cable : Everything Else
F81 Barrel Connector 3GHz Coaxial Female Adapter RG6 TV Internet Coax Cable Dish | eBay
IDEAL F-Series Coaxial Cable Female Adapters (2-Pack) 85-071 - The Home Depot
Amazon.com: Pasow F81 Barrel Connectors High Frequency 3GHz Female to Female F-Type Adapter Couplers (10 pcs, Silver) : Electronics
Twist Lock DC Coaxial Plug & Barrel Power Jack Connector Set 2.5 x 5.5mm
BNC Plug Male To Male Plug Coupler Connector
Amazon.com: SO239 Barrel Connector, 6-Pack PL259 Coupler UHF Female to Female RF Adapter Coax Coaxial for CB Ham Radio Antenna, SWR Meter Cable Extention : Electronics
Amazon.com: Wilson 971129 F-Female Barrel Connector for RG6 Coax Cable 801265 841262 841263 : Electronics