Has anyone seen this? It looks efficient but I'm not sure it is big enough, or deep enough for some of my Savannahs. The size is 'moderate' and the spill guard adds an extra incentive. To be honest, I'd love to create this using the cement mixing trays I use as some of my litter boxes (which are 27.5" x 20"), if I only knew an efficient way of cutting the plastic to create the slots...
https://www.indiegogo.com/projects/luuup-litter-box-the-best-cat-litter-box-ever#/
https://www.indiegogo.com/projects/luuup-litter-box-the-best-cat-litter-box-ever#/