The WRCT40-2001.5-2002.5-2017.5-2018.5-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.0025 to 2.0175 GHz, Bandwidth 15 MHz, Insertion Loss 3.5 to 6 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT40-2001.5-2002.5-2017.5-2018.5-50 can be seen below.