The SWF-40348360-28-L1 from ERAVANT is a Waveguide Filter with Frequency 26 to 40 GHz, Input Power 100 W, Insertion Loss 1.2 to 2 dB, Operating Temperature -40 to 85 Degree C, Rejection 60 dB. Tags: Low Pass. More details for SWF-40348360-28-L1 can be seen below.