The WRCTG12+16-1837.5-1842.5-1882.5-1887.5-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.8425 to 1.8825 GHz, Bandwidth 40 MHz, Insertion Loss 2 to 4 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTG12+16-1837.5-1842.5-1882.5-1887.5-80 can be seen below.