The QLF-16000-50 from Qualwave is a Low Pass RF Filter with Frequency DC to 16 GHz, Stopband Frequency 16.8 to 24 GHz, Insertion Loss 1.5 dB, Upper Rejection 50 dB @ 16.8 to 24 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-16000-50 can be seen below.