$39.99 at Costco. 5-level plastic shelving unit... easy assembly (no tools), super sturdy with ventilated shelves. Finally have some more room (well, actually I'm out already... have to fit several more large rubbermaids in that one...lol)! Actually, had to dispose of a table to make room for the unit, and now the litter box is so close to the door the door can only open 1/3 of the way...lol! Hehehe...that freaky lil character at the bottom is the infamous Lil' ******* (real name is Putin)
<img src="http://gallery.kingsnake.com/data/60unit1.jpg">
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