The QLF-8000-50-2 from Qualwave is a Low Pass RF Filter with Frequency DC to 8 GHz, Stopband Frequency 9 to 18 GHz, Insertion Loss 1.2 dB, Upper Rejection 50 dB @ 9 to 18 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-8000-50-2 can be seen below.