The RLPF13G03 from RF-Lambda is a Low Pass RF Filter with Frequency DC to 3 GHz, Stopband Frequency 3.45 to 8 GHz, Insertion Loss 0.85 to 1 dB, Rejection 50 to 58 dB @ 3.45 to 8GHz, Power 15 W. Tags: Module with Connector, Stripline, Suspended Substrate Filter. More details for RLPF13G03 can be seen below.