The TLRF-27G-31G-2.92 from Talent Microwave Inc is a Band Stop Filter with Stopband Frequency 27500 to 31000 MHz, Insertion Loss 2 to 5 dB, Rejection 60 dB, Power 10 W, VSWR 1.60:1, 2.00:1. Tags: Module with Connectors, Cavity Filter. More details for TLRF-27G-31G-2.92 can be seen below.