The PmT-F-1000 from Princeton Microwave Technology is a Band Stop Filter with Stopband Frequency 26.2 to 27 GHz, Insertion Loss 1 to 2 dB, Rejection 70 dB, Power 10 W, Return Loss 12 to 15 dB. Tags: Module with Connectors, Notch Filter. More details for PmT-F-1000 can be seen below.