Empire (Singer) model AT-5C-15 T-1 NF112 15db attenuator. 4" L x 3/4" dia. (tubular)."N" female coax connectors on each end. w/~12" coax connected w/"N" male coaxconnector. Untested, removed from working equip being updated. Price: $10 OBO + postage.73 Walt (N4GL)352-637-1755