The 4CL3G-2G-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 2 to 4 GHz, Bandwidth 2000 MHz, Center Frequency 3000 MHz, Insertion Loss 1 dB, VSWR 1.50:1. Tags: Module with Connectors, Combline Filter. More details for 4CL3G-2G-CD-SFF can be seen below.