The SLP-27+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 27 MHz, Bandwidth 27 MHz, 3 dB Cutoff Frequency 30 MHz, Insertion Loss 0.5 to 1 dB, Rejection 20 to 43 dB. Tags: Module with Connector, Lumped Component Filter. More details for SLP-27+ can be seen below.