The QBF-2025-2120-50 from Qualwave is a Band Pass Filter with Frequency 2.025 to 2.12 GHz, Bandwidth 95 MHz, Center Frequency 2072.5 MHz, Insertion Loss 2 dB, Upper Rejection 50 [email protected] to 2.3 GHz. Tags: Module with Connectors. More details for QBF-2025-2120-50 can be seen below.