The BK-351E from Microlab is a Triplexer with Frequency 1710 to 2700 MHz, Frequency Band 1 1710 to 1880 MHz, Frequency Band 2 1920 to 2200 MHz, Frequency Band 3 2300 to 2700 MHz, Insertion Loss Band 1 0.4 dB. More details for BK-351E can be seen below.