The QLF-20000-75 from Qualwave is a Low Pass RF Filter with Frequency DC to 20 GHz, Stopband Frequency 24 to 44 GHz, Insertion Loss 1.5 dB, Upper Rejection 75 dB @ 24 to 44 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-20000-75 can be seen below.