The XLF-63+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 6 GHz, Stopband Frequency 9.6 to 17.8 GHz, 3 dB Cutoff Frequency 8.1 GHz, Insertion Loss 1.3 to 1.6 dB, Rejection 12 to 15 dB. Tags: Surface Mount, Reflectionless Filter. More details for XLF-63+ can be seen below.