The TLRF-1850M-1920M-E2 from Talent Microwave Inc is a Band Stop Filter with Stopband Frequency 1850 to 1920 MHz, Insertion Loss <3 dB(at the corner: 3.0dB Max.), Rejection 50 dB, Power 5 W, VSWR 1.80:1. Tags: Module with Connectors, Cavity Filter. More details for TLRF-1850M-1920M-E2 can be seen below.