The WLJE5-7.5-25-60-8000-1 from Wainwright Instruments is a Low Pass RF Filter with Frequency DC to 7.5 / 25 MHz, Stopband Frequency Chosen Fco x 1.1 to 8 GHz, 3 dB Cutoff Frequency Choice of 7.5 to 25 MHz, Insertion Loss 1 to 2.5 dB, Rejection 60 dB. Tags: Module with Connector, Lumped Component Filter, Chebyshev Filter. More details for WLJE5-7.5-25-60-8000-1 can be seen below.