The QLF-45-20 from Qualwave is a Low Pass RF Filter with Frequency DC to 45 MHz, Stopband Frequency 70 to 1600 MHz, Insertion Loss 1 dB, Upper Rejection 20 dB @ 0.07 to 0.09 GHz, 40 dB @ 90 to 1600 MHz, Power 0.5 W. Tags: Module with Connector. More details for QLF-45-20 can be seen below.