The QBF-1200-1400-50 from Qualwave is a Band Pass Filter with Frequency 1.2 to 1.4 GHz, Bandwidth 200 MHz, Center Frequency 1300 MHz, Insertion Loss 0.3 dB, VSWR 1.35:1. Tags: Module with Connectors. More details for QBF-1200-1400-50 can be seen below.