The WTRCT10-2280-2700-20-30-40-19 from Wainwright Instruments is a Tunable Filter with Frequency 2.28 to 2.7 GHz, Bandwidth 20 MHz, Rejection 40 dB, Insertion Loss 1.25 to 2.5 dB, Operating Temperature 15 to 45 Degrees C. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCT10-2280-2700-20-30-40-19 can be seen below.