The TLLF-DC-18M-L from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 18 MHz, Insertion Loss 3 dB, Rejection 35 to 55 dB, Upper Rejection >35dB@30MHz to >55dB@60MHz, Power 2 W. Tags: Module with Connector. More details for TLLF-DC-18M-L can be seen below.