The WRCD20-1442-1449.5-1499.5-1507-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.4495 to 1.4995 GHz, Bandwidth 50 MHz, Insertion Loss 2.25 to 2.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCD20-1442-1449.5-1499.5-1507-50 can be seen below.