I've got the following Ten-Tec and Inrad filters for sale: Inrad #757 2400Hz 10-pole 6.3MHz i.f. $90 Ten-Tec #288 1800Hz 6.3MHz i.f. $65 (two available) Priority Mail shipping $5 total per order. These filters are 100% tested on a spectrum analyzer and guaranteed. 73, Barry N1EU