The WRCTF12+9-812-814-849-851-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 814 to 849 MHz, Insertion Loss 1.5 to 3 dB, Rejection 40 dB, VSWR 1.50:1, Center Frequency 831.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCTF12+9-812-814-849-851-40-2 can be seen below.