The QLF-3000-40 from Qualwave is a Low Pass RF Filter with Frequency DC to 3 GHz, Stopband Frequency 4.78 to 7.5 GHz, Insertion Loss 0.41 to 0.72 dB, Upper Rejection 40 dB @ 4.78 to 7.5 GHz, Power 10 W. Tags: Module with Connector. More details for QLF-3000-40 can be seen below.