The XLF-172H-D+ 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 dB, Rejection 28 to 47 dB. Tags: Die, Reflectionless Filter. More details for XLF-172H-D+ can be seen below.