The FLP-2150 from Marki Microwave is a Low Pass RF Filter with Frequency DC to 20.5 GHz, Stopband Frequency 26.2 to 32 GHz, 3 dB Cutoff Frequency 21.5 GHz, Insertion Loss 1.2 dB, Rejection 25 to 50 dB. Tags: Module with Connector. More details for FLP-2150 can be seen below.