XL Cat Litter Box

The best litter box for your cat is the biggest box you can find and preferably one and a half times the length of your cat and high enough so that it doesn’t bump its ears when sitting upright. Modkat ‘s are beautiful, but only the XL is suitable for adult cats. A litter box does not have to be expensive though, a large plastic one will do just fine. 
Modcat website.