The Model 16518 from Microwave Filter Company is a Waveguide Filter with Frequency 7.25 to 7.75 GHz, Insertion Loss 0.2 dB, Operating Temperature -40 to 60 Degree C, Rejection 55 dB, Rejection Frequency 7.9 to 8.4 GHz. Tags: Band Stop. More details for Model 16518 can be seen below.