Hello bunny.
Saw the Patriots there.
Are you from New England?
I got the Airpot [HASHTAG]#5[/HASHTAG], 3.6 gal/13.8 L, green base.
I could fit 9 in my 4x4. Mephisto spec's that layout on several strains.
Sometimes bigger fewer, sometimes smaller more.
This was in the middle, so I thought it would be somewhat versatile.
It's my first grow, so there have been some other factors probably influencing my root systems. I want to see several un-potted before I make any assessment there.
I like them so far, and I am moving my Grape Crinkles into 2 tonight. I'm experimenting with tiered style, 1L airpot to [HASHTAG]#5[/HASHTAG] airpot.
I dig the little ones for starting seedlings. I've been able to unwrap the root ball in one piece a few times. Thought I'd try tiered.
So, anyway...I have a few extra #5's.
I'm not sure of the afn regulations , but if you're pretty close, (So. Shore, MA) PM me your address, and I will send you a brand new one to check out.
I might be making some space for Auto Pots. Only because BioTabs recommends them, and thats my next system. And Mephisto is down with BioTabs. And Illuminautos are coming. So its looking like a plan. 
But I think I'm going to keep some AirPots going also to try some different stuff.
Drop a line if you want.
Love to help an afn homie/NE fan out where I can.
Jah Strength
mg
All are invited to check out my current first grow. [emoji271] Mephisto; DP.
https://www.autoflower.org/index.php?threads/59051/