RG6 RG59 2.5GHz F-Jack to F-Jack Adapter F-81 Coupler 3/4" Long Barrel (50/Pack) 2.5 GHz F81 Splice 3/4" Long High performance F splice Flat-ended small-aperture F port meets SCTE IPS-SP-407 for improved contact and high return loss Precision Machined CDA360 Brass Construction 360 round seizing center contact provides high spring-tension for repeat insertions