Then I suggest getting a PVC cage. They are perfect to house balls. They are great to look at and easy to maintain husbandry. What's best for you isn't always best for the animal. Ball pythons don't do very well in glass enclosures without a huge effort on your part.
And if you're dead set on a tall display enclosure to look in that is not as expensive as a PVC cage, then I suggest getting a taller tub that has similar dimensions as the glass enclosure. But just to let you know, ball pythons are awful display animals. Looking into the cage will be pointless because if your husbandry is correct, your snake will be hiding in it's hide 90% of the time.
I really like enclosures to be 14 high higher are problems to heat lower are harder to clean. The guy I have ordered pvcx enclosures from make 14 and 12s the 12s are harder to clean (I own both) I prefer the vision to them all but shipping to canada is hugely expensive (90$ for the 211) I feel the roto is superior to the pvcx enclosures it is much harder and more sturdy the expanded pvc is harder to heat through the floor. I have abandoned the commercial ones and build using pvcx and full pvc floors for this reason it is cheaper to run by a fair bit.
Personally I would get the 211 24x22x14 I own one it is great. A small ball will need lots of plants and such to feel secure but that isn't very difficult to do. I own one and friends own a few a great enclosure. they heat efficiently as it is PP and is super easy to clean due to the roto moulding method it has all rounded corners. Easier in many ways than PVCx it does tend to sag a but I support the middle with a extra foot so that isn't a problem.
I really like enclosures to be 14 high higher are problems to heat lower are harder to clean. The guy I have ordered pvcx enclosures from make 14 and 12s the 12s are harder to clean (I own both) I prefer the vision to them all but shipping to canada is hugely expensive (90$ for the 211) I feel the roto is superior to the pvcx enclosures it is much harder and more sturdy the expanded pvc is harder to heat through the floor. I have abandoned the commercial ones and build using pvcx and full pvc floors for this reason it is cheaper to run by a fair bit.
Yes I have two visions, a sly plastics (http://www.slyplastics.com/en/index.html) and two side turned tanks as well as a ap rack and two custom build and designed enclosures.