The WLKE4-0.075-0.8-60-8000-0.01 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 0.075 / 0.8 MHz, Stopband Frequency Chosen Fco x 1.24 to 8 GHz, 3 dB Cutoff Frequency Choice of 0.075 to 0.8 MHz, Insertion Loss 0.7 to 1.1 dB, Rejection 60 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLKE4-0.075-0.8-60-8000-0.01 can be seen below.