The WLJ10-6000-6500-60-16000-300 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 6 / 6.5 GHz, Stopband Frequency Chosen Fco x 1.24 to 16 GHz, 3 dB Cutoff Frequency Choice of 6 to 6.5 GHz, Insertion Loss 0.4 to 0.6 dB, Rejection 60 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLJ10-6000-6500-60-16000-300 can be seen below.