The QPX-07081921A from Communication Components Inc is a Quadplexer with Attenuation 50 dB, Frequency 698 to 2180 MHz, Frequency1 698 to 798 MHz, Frequency2 824 to 894 MHz, Frequency3 1850 to 1990 MHz. Tags: Module With Connectors. More details for QPX-07081921A can be seen below.