The AE1215L9221 from Anatech Electronics is a Low Pass RF Filter with Frequency DC to 1.215 GHz, 3 dB Cutoff Frequency 1.215 GHz, Insertion Loss 0.3 dB, Rejection 50 dB, Power 250 W. Tags: Module with Connector. More details for AE1215L9221 can be seen below.