The WRCA6-433.52-433.82-434.02-434.32-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 433.82 to 434.02 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.5 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCA6-433.52-433.82-434.02-434.32-40 can be seen below.