The PL3-4/NF from MCLI is a Power Divider with Frequency 200 to 750 MHz, Insertion Loss 1 dB, Isolation 25 dB, Amplitude Balance 0.3 dB, Phase Balance 5 deg. Tags: Module with Connectors, Lumped Element Power Divider. More details for PL3-4/NF can be seen below.