The RNFL2225K from RF-Lambda is a Band Stop Filter with Stopband Frequency 2.225 to 2.375 GHz, Insertion Loss 3 dB, Rejection 50 dB, Power 50 W, VSWR 1.80:1. Tags: Module with Connectors, Notch Filter, Cavity Filter. More details for RNFL2225K can be seen below.