GHE CuttingBoard Propagator® compact aeroponic propagator The best choice for small projects and a key instrument for plant collectors. Like the RainForest72®, the Cutting Board is an ideal system to get a vigorous and healthy root mass, that will easily adapt to the different environments into which they will be transplanted, be it in hydroponics or in soil. It is a key system for small projects and a practical instrument for all.