The radiator is smaller and has a different diameter of the fittings:

The radiator is supposed to carry one 120mm fan which is not included into the kit for the sake of economy. This economy is justifiable to some extent as quite a number of advanced system cases come today with a preinstalled 120mm exhaust fan and there’s no need for an extra one. But if you do need a 120mm fan, you can order it separately for $10-15 extra. The fittings are similar to the fittings of the WaterChill Antarctica KT03A-12VX 1/2 inch kit in design, but are considerably smaller:

The included pipe is smaller in diameter, too:

This proved to be an advantage eventually as you’ll see below.

The manufacturer’s cost-saving policy affected the pump, too: