The RLPF13G20 from RF-Lambda is a Low Pass RF Filter with Frequency DC to 20 GHz, Stopband Frequency 23 to 30 GHz, Insertion Loss 0.8 to 1.2 dB, Rejection 40 to 45 dB @ 23 to 30 GHz, Power 15 W. Tags: Module with Connector, Stripline, Suspended Substrate Filter. More details for RLPF13G20 can be seen below.