The QLF-8000-50-1 from Qualwave is a Low Pass RF Filter with Frequency DC to 8 GHz, Stopband Frequency 8.8 to 20 GHz, Insertion Loss 1 dB, Upper Rejection 50 dB @ 8.8 to 20 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-8000-50-1 can be seen below.