The AE112B10244 from Anatech Electronics is a Cavity Band Pass Filter with a center frequency of 112.5 MHz and passband of 1 MHz. The filter has an insertion loss of under 1.75 dB and more than 60 dB of rejection above and below the passband. It can handle up to 1 watt of power and is available in a module that measures 11 x 8.5 x 1.85 inches with W Type female Connectors.