The PL2-21-S-75/BF from MCLI is a Power Divider with Frequency 70 to 140 MHz, Insertion Loss 0.7 dB, Isolation 20 dB, Amplitude Balance 0.2 dB, Phase Balance 2 deg. Tags: Module with Connectors, Lumped Element Power Divider. More details for PL2-21-S-75/BF can be seen below.