The DF2RJ2441L-83M from Innertron is a Band Pass Filter with Frequency 2.4 to 2.48 GHz, Bandwidth 83 MHz, Center Frequency 2441.5 MHz, Insertion Loss 1.3 dB, Rejection 35 dB@ 2150.5 MHz. Tags: Surface Mount. More details for DF2RJ2441L-83M can be seen below.