The WLKE3-60-225-40-8000-1 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 60 / 225 MHz, Stopband Frequency Chosen Fco x 1.24 to 8 GHz, 3 dB Cutoff Frequency Choice of 60 to 225 MHz, Insertion Loss 0.5 to 0.7 dB, Rejection 40 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLKE3-60-225-40-8000-1 can be seen below.