Happy New Year All, I have an Inrad # 714 filter - 1.8 Khz, 455 kHz for sale. New in box - never used $120.00 mailed first class, insured, conus. Cash, Money Order, Bank Draft preferred, I do not take PayPal. telephone 269-968-2633 or respond directly off the MP reflector to: gmguerin at voyager.net 73, George K8GG