The QLF-25000-40 from Qualwave is a Low Pass Filter with Frequency DC to 25 GHz, Stopband Frequency 28 to 30 GHz, Insertion Loss 2 dB, Rejection 40 dB @28 to 30 GHz, Upper Rejection 40 dB. Tags: Module with Connector. More details for QLF-25000-40 can be seen below.