The WTRCD5-1800-2000-0.2-1.6-40-3 from Wainwright Instruments is a Tunable Filter with Frequency 1.8 to 2 GHz, Tunable Frequency 200 MHz, Bandwidth 0.2 MHz, Rejection 40 dB, Insertion Loss 0.75 to 4 dB. Tags: Module with Connectors, Mechanically Controlled. More details for WTRCD5-1800-2000-0.2-1.6-40-3 can be seen below.