The PLH4-18-40 from MCLI is a Power Divider with Frequency 30 to 90 MHz, Insertion Loss 0.3 dB, Isolation 20 dB, Input Power 40 W, Amplitude Balance 0.2 dB. Tags: Module with Connectors, Lumped Element Power Divider. More details for PLH4-18-40 can be seen below.