The 4FS10-2250/H100-O/O from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 2178.5 to 2321.5 MHz, Bandwidth 143 MHz (0.5dB), Center Frequency 2250 MHz, Upper Rejection 50 dB. Tags: Cavity Filter. More details for 4FS10-2250/H100-O/O can be seen below.