The CBP4-1875Q+ from Mini Circuits is a Band Pass Filter with Frequency 1825 to 1925 MHz, Center Frequency 1875 MHz, Insertion Loss 2.5 to 3.2 dB, Power 7 W, Return Loss 10 to 15 dB. Tags: Surface Mount, Ceramic Filter. More details for CBP4-1875Q+ can be seen below.