The TLLF-DC-250M-L from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 250 MHz, Insertion Loss 3 dB, Rejection 35 to 55 dB, Upper Rejection >35dB@300MHz to >55dB@450MHz, Power 2 W. Tags: Module with Connector. More details for TLLF-DC-250M-L can be seen below.