6ft WBC400 Antenna Extension Cable | wbc-400-plenum
http://onlywire.com/r/18408094 This plenum-rated transmission line offers similar performance compared to corrugated copper cables but provides higher flexibility and simplified connectorization with LMR-400 coaxial cable connectors. The braided coax, plenum grade cable can be used in almost any application where handling characteristics, improved shielding and low loss is required.