DWC in 3" net pots

Will 3" net pots in 7" DWC that are 6" apart support 3-4 ft plants? A local hydro seller I'm thinking of dealing with says they will. Seems like it'd get a little bushy in there to me ... but what do I know?

3" pots will work just fine, but plan on offering them some support. Taller plants tend to want to fall over in 3" nets.

more sativas would need to be tied and supported btu indicas are awesome in there.

I grow in 3" in grow cubes and they can support huge ass plants. The part that I would be worried about would be like they said is to support them with some sort of tomato trellis or net. I have even run lines of twine off the ceiling and just used tomato clips to hold them up. That is the easiest way if you dont have light mover or things in the way.

Thanx 4 the answers. Looks like this local hydroponic dealer is gonna be my guy.