The TLRF-12G2-12G75-S from Talent Microwave Inc is a Band Stop Filter with Stopband Frequency 12.2 to 12.75 GHz, Insertion Loss <1.5 dB, Rejection 55 dB, Power 20 W, VSWR 2.00:1. Tags: Module with Connectors, Drop-in. More details for TLRF-12G2-12G75-S can be seen below.