Quantic PMI Model BRF1370-50-CD-SFF-LK is a band reject filter with center frequency of 1.37 GHz and notch bandwidth of 0.06 GHz, with a notch depth of 50 dB, rated for rf power up to 10 W. Package size is 3.25" x 0.77" x 1.0" with SMA female connectors.