The TWFCB-915M26-C21M45-N03 from Techniwave is a Band Pass Filter with Frequency 902 to 928 MHz, Bandwidth 26 MHz, Center Frequency 915 MHz, Insertion Loss 1.5 dB, Upper Rejection 45 dB @ 936 to 960 MHz. Tags: Module with Connectors. More details for TWFCB-915M26-C21M45-N03 can be seen below.