The QLF-50000-20 from Qualwave is a Low Pass RF Filter with Frequency DC to 50 GHz, Stopband Frequency 60 GHz, Insertion Loss 2 dB, Upper Rejection 20 dB @ 60 GHz, VSWR 2.50:1. Tags: Module with Connector. More details for QLF-50000-20 can be seen below.