The FCL4-1900-400 from Sirius Microwave is a Band Pass Filter with Frequency 1.72 to 2.08 GHz, Bandwidth 360 MHz, Center Frequency 0 to 1.9 GHz, Insertion Loss 0.5 dB, Rejection 50 dB. Tags: Through Hole, Combline Filter, Cavity Filter. More details for FCL4-1900-400 can be seen below.