The 11LB10-312.5/XQ175-N/N from K&L Microwave is a Band Pass Filter with Frequency 225 to 400 MHz, Insertion Loss 0.5 dB, Power 500 W, VSWR 1.25:1, Operating_Temperature -55 to 85 Degree C. Tags: Module with Connectors. More details for 11LB10-312.5/XQ175-N/N can be seen below.