The QLF-10000-50 from Qualwave is a Low Pass RF Filter with Frequency DC to 10 GHz, Stopband Frequency 10.9 to 18.5 GHz, Insertion Loss 1 to 1.5 dB, Upper Rejection 50 dB @ 10.9 to 18.5 GHz, Power 15 W. Tags: Module with Connector. More details for QLF-10000-50 can be seen below.