The AE12500H9911 from Anatech Electronics is a RF High Pass Filter with Frequency 12.5 to 24.5 GHz, Insertion Loss 1 to 2 dB, Power 15 W, Rejection 60 dB@DC-11400 MHz, VSWR 1.60:1, 1.80:1. Tags: Module with Connectors. More details for AE12500H9911 can be seen below.