The 91500182 from POLOMARCONI.IT is a RF Duplexer with Frequency 790 to 960 MHz / 1710 to 1880 MHz / 1920 to 2170 MHz / 2400 to 2485 MHz, Power 10 W, Insertion Loss 0.7 to 1.8 dB, Isolation 20 to 30 dB, Attenuation 20 to 30 dB. Tags: Module with Connectors. More details for 91500182 can be seen below.