The Model 19170 from Microwave Filter Company is a Waveguide Filter with Frequency 7.25 to 7.75 GHz, Insertion Loss 0.3 dB, Operating Temperature -10 to 65 Degree C, Rejection 90 dB, Rejection Frequency 7.9 to 8.4 GHz. Tags: Band Stop. More details for Model 19170 can be seen below.