The BK-421DW from Microlab is a Triplexer with Frequency 698 to 2690 MHz, Frequency Band 1 698 to 960 MHz, Frequency Band 2 1695 to 2180 MHz, Frequency Band 3 2300 to 2690 MHz, Insertion Loss Band 1 0.5 dB. More details for BK-421DW can be seen below.