The TLLF-DC-18G-X2 from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 18 GHz, Insertion Loss 1.5 dB, Rejection 50 dB, Upper Rejection >50dB@21 to 38GHz, Power 15 W. Tags: Module with Connector. More details for TLLF-DC-18G-X2 can be seen below.