The LPF-LP-6.8-50-1.25-BF-BF / 001682 from DETI Microwave is a Low Pass RF Filter with Frequency DC to 4.9 MHz, Insertion Loss 0.5 dB, Rejection 100 dB, Upper Rejection 100 dB @18 MHz, Power 10 W. Tags: Module with Connector. More details for LPF-LP-6.8-50-1.25-BF-BF / 001682 can be seen below.