The ZXLF-K133+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 13 GHz, Stopband Frequency 20 to 35 GHz, 3 dB Cutoff Frequency 15 GHz, Insertion Loss 1.7 to 2.8 dB, Rejection 18 to 23 dB dB. Tags: Module with Connector, Reflectionless Filter. More details for ZXLF-K133+ can be seen below.