Model 7LPX-R18000-S is a bidirectional lowpass filter from Lorch Microwave with low-loss passband from 200 MHz to 18 GHz and high rejection of signals beyond that cutoff point. The insertion loss is 2 dB or less from 200 MHz to 18 GHz while the VSWR is only 2.0:1 from 200 MHz to 18 GHz. Rejection of unwanted signals is 35 dB at 22 GHz and 55 dB from 26 to 30 GHz. The lowpass filter measures 0.81 x 0.450 x 0.38 in., excluding its removable SMA female connectors.