The AB2500B529 from Anatech Electronics is a Cavity Band Pass Filter with a center frequency of 2500 MHz and bandwidth of 5 MHz. The filter has an insertion loss of under 1.5 dB and more than 20 dB of rejection above and below the passband. It can handle up to 20 watts of power and is available in a module that measures 7.87 x 4.05 x 1.53 inches with SMA female Connectors.