The FLL-25-150W from Sirius Microwave is a Low Pass RF Filter with Frequency 0 to 20 MHz, Stopband Frequency 30 MHz to 5 GHz, 3 dB Cutoff Frequency 25 MHz, Insertion Loss 0.8 dB, Rejection 40 dB. Tags: Module with Connector, Lumped Component Filter. More details for FLL-25-150W can be seen below.