The WLKE4-0.15-7.5-50-8000-0.01 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 0.15 / 7.5 MHz, Stopband Frequency Chosen Fco x 1.15 to 8 GHz, 3 dB Cutoff Frequency Choice of 0.15 to 7.5 MHz, Insertion Loss 0.6 to 1.1 dB, Rejection 50 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLKE4-0.15-7.5-50-8000-0.01 can be seen below.