The WRCGV14-1421-1428-1448-1455-60 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.428 to 1.448 GHz, Bandwidth 20 MHz, Insertion Loss 1.25 to 2.5 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV14-1421-1428-1448-1455-60 can be seen below.