The WLC10-10-50-60-600-2500 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 10 / 50 MHz, Stopband Frequency Chosen Fco x 1.25 to 600 MHz, 3 dB Cutoff Frequency Choice of 10 to 50 MHz, Insertion Loss 0.4 to 0.5 dB, Rejection 60 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLC10-10-50-60-600-2500 can be seen below.