The FMFL026 from Fairview Microwave is a Low Pass RF Filter with Frequency DC to 400 MHz, Stopband Frequency 600 to 800 MHz, 3 dB Cutoff Frequency 400 MHz, Insertion Loss 1 dB, Upper Rejection 40 to 60 dB@600 to 800 MHz. Tags: Module with Connector. More details for FMFL026 can be seen below.