The FLP-5000 from Marki Microwave is a Low Pass RF Filter with Frequency DC to 49.4 GHz, Stopband Frequency 56 to 62 GHz, 3 dB Cutoff Frequency 50 GHz, Insertion Loss 2 dB, Rejection 25 to 50 dB. Tags: Module with Connector. More details for FLP-5000 can be seen below.