Yep! Go to reptiletubs.com and look for the VE175 tub.
I have two, they're great. Probably a bit small for a HUGE adult female, but can house most adult boas comfortably.
I built a rack with two of them, do a search for VE175 and I'm sure you'll find the thread. The tubs are Iris, and are "christmas tree storage" boxes that some people have had good luck finding at WalMarts locally during Christmastime, but I've never been able to find them here. ReptileTubs is great and they have good service and fast shipping.
I'll dig up my rack thread for you.