The TLP-L-10051 from Telonic Berkeley is a Low Pass RF Filter with Frequency DC to 88 MHz, 3 dB Cutoff Frequency 88 MHz, Insertion Loss 0.5 dB, Rejection 40 to 50 dB, Upper Rejection 50 dB @ 122 MHz, 50 dB @ 122 to 183 MHz, 40 dB @ 183 to 244 MHz. More details for TLP-L-10051 can be seen below.