The KFL177321 from Konnect RF is a Low Pass RF Filter with Frequency DC to 1500 MHz, Stopband Frequency 3500 to 8000 MHz, Insertion Loss 1.5 dB, Upper Rejection 80 dB @ 3500 to 8000 MHz, Power 20 W. Tags: Module with Connector. More details for KFL177321 can be seen below.