The DF2RB1472L-40M1 from Innertron is a Band Pass Filter with Frequency 1.43 to 1.51 GHz, Bandwidth 40 MHz, Center Frequency 1472 MHz, Insertion Loss 1.5 dB, Rejection 40 dB@ 1702 MHz. Tags: Surface Mount. More details for DF2RB1472L-40M1 can be seen below.