one of my racks is an AP economy rack, it was actually my first rack and i got it used off of a member on here

i LOVE that rack. The one i have houses the 15 and 32 quart tubs which has been a life saver, its extremely versatile.

Because in the winter the ambient temps are not very good here (down to 58 before we got a space heater, however that was NOT in the snake tubs, they were around 75, a bit low but everyone still had a hot spot). I covered the open sides with some foam board for insulation. That was a dollar store fix and well worth it. My snakes are more secure too.