The RNFL2230K from RF-Lambda is a Band Stop Filter with Stopband Frequency 2.2 to 2.26 GHz, Insertion Loss 3 dB, Rejection 50 dB, Power 50 W, VSWR 1.80:1. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for RNFL2230K can be seen below.