The KFL177164 from Konnect RF is a Band Stop Filter with Stopband Frequency 1920 to 1980 MHz (Band -1), 2110 to 2170 MHz (Band -2), Insertion Loss 1 dB, Rejection 60 dB, Power 1 W (Average Power), VSWR 1.50:1. Tags: Module with Connectors, Notch Filter. More details for KFL177164 can be seen below.