The XLF-172H+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 2 GHz, Stopband Frequency 3.6 to 20 GHz, 3 dB Cutoff Frequency 2.35 GHz, Insertion Loss 1.7 to 3.0 dB, Rejection 16 to 47 dB. Tags: Surface Mount, Reflectionless Filter. More details for XLF-172H+ can be seen below.