The ZXLF-K332+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 3.25 GHz, Stopband Frequency 5.9 to 25 GHz, 3 dB Cutoff Frequency 4.12 GHz, Insertion Loss 1.8 to 3 dB, Rejection 12 to 19 dB. Tags: Module with Connector, Reflectionless Filter. More details for ZXLF-K332+ can be seen below.