The CLPFL-0025-BNC from Crystek Corporation is a Low Pass RF Filter with Frequency DC to 25 MHz, Insertion Loss 0.70 to 1.86 dB, Rejection 2.02 to 89.03 dB, Power 4 W, Return Loss 19.77 to 29.63 dB. Tags: Connectorized, Chebyshev Filter. More details for CLPFL-0025-BNC can be seen below.