F-Type Female to Female Premium Splice Coupler Adapters- 3 Ghz EASILY COMBINE TWO COAXIAL CABLES  Great for extending TVs, cable boxes, VCRs, antennas, HDTVs, and any other devices with F-Type connections SUPPORTS ALL TV CARRIERS  Including Comcast, Time Warner, Cox Communications, Charter Communications, Verizon FiOS, and AT&T HIGH QUALITY MATERIALS  This F-Type Female to Female adapter is constructed with a nickel-plated brass body INDOOR AND OUTDOOR USE  Flat ports on each end protects from environmental hazards and creates a moisture barrier BUY IT NOW - LIFETIME WARRANTY - This F-Type adapter is so easy to install, is reliable, and is built to last