The ZVBP-27925-K+ from Mini Circuits is a Band Pass Filter with Frequency 27500 to 28350 MHz, Center Frequency 27925 MHz, Insertion Loss 1.9 to 3.5 dB, Upper Rejection 50 to 115 dB @ 28525 to 45000 MHz, Lower Rejection 50 to 128 dB @ DC to 27325 MHz. Tags: Module with Connectors, Cavity Filter. More details for ZVBP-27925-K+ can be seen below.