The WLKX10-2000-10000-60-18000-20 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 2 / 10 GHz, Stopband Frequency Chosen Fco x 1.16 to 18 GHz, 3 dB Cutoff Frequency Choice of 2 to 10 GHz, Insertion Loss 0.8 to 1.3 dB, Rejection 60 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLKX10-2000-10000-60-18000-20 can be seen below.