This is far from true. Maybe if you only make a 4 site system or something small. But for me, making my 24 site XXL it's been at a grand or more cheaper even including a 1 hp chiller, bigger pumps, and air diffusers as opposed to the stones. It's too much of a basic system with basic parts in my eyes to not DIY.doing it diy it comes out to be only like $200 max cheaper if im correct.
The guy at Better Grow I talked to acted like he'd never heard of it.....who knows, maybe they do offer it.?Green Coast and Better Grow both sell the undercurrent at a discount. Both are chains in the LA area. You can also ask you local hydro shop to carry them and they will discount it for you.