The 921Z-1732-2132 from Innowave RF is a RF Duplexer with Frequency 2110 to 2155 MHz / 1710 to 1755 MHz, Band 1 2110 to 2155 MHz, Band 2 17100 to 1755 MHz, Power 250 W, Insertion Loss 0.35 dB. Tags: Module with Connectors. More details for 921Z-1732-2132 can be seen below.