The QLF-5000-45 from Qualwave is a Low Pass RF Filter with Frequency DC to 5 GHz, Stopband Frequency 5.8 to 10.5 GHz, Insertion Loss 1 dB, Upper Rejection 45 dB @ 5.8 to 10.5 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-5000-45 can be seen below.