The BK-311E from Microlab is a Triplexer with Frequency 698 to 2170 MHz, Frequency Band 1 698 to 960 MHz, Frequency Band 2 1710 to 1880 MHz, Frequency Band 3 1920 to 2170 MHz, Insertion Loss Band 1 0.3 to 0.5 dB. More details for BK-311E can be seen below.