Our Part Number AE902N2246 is a high performance 902 MHz ISM Band Reject filter with a notch bandwidth band of 892-912 MHz (30 MHz BW) and 40 dB attenuation in the notch.  It features a very sharp 10 MHz transition from stop band to passband, with and insertion loss of 0.75 dB max in the low side passband  DC-882 MHz and High side passband of 922-2700 MHz.  For more information see datasheet  902 MHz ISM Cavity Notch Filter (anatechelectronics.com).