For sale 5 Perfect Vision F81 Barrel connectors, model DTVF81I-05. This is the only model of a barrel connector that is approved by DirecTV/AT&T. Bag also includes 5 nuts and washers. Item Description: The internal components of this fitting are much different from a standard VHF/UHF barrel connector. The center coax conductor indexes into a close tolerance tube that is resilient (spring) brass and is gold plated. The close center-tube tolerance assures a tight connection, the gold plating assures a good electrical connection and the overall performance is greatly improved over standard designs. Internally, the center conductor tube is insulated from the inner skin of the barrel by a maximum air gap which results in much less RF loss. Insertion loss is extremely low and not really necessary to consider in complex systems. DIRECTV approved. ·        Internal components are designed for high frequency. ·        Gold plated center conductor assures minimum RF loss & good electrical connections. ·        Resilient internal metals for dependable repeated insertion connections. ·        Can easily be used in wall plates using the included washer and nut. ·        Minimal insertion loss.