I wish I would've tried this out as soon as I bought it, as it's too late to return. I even bought refills, but one of my kitties tries chewing it as soon as I try to put it on the box. I'm worried about her making a hole in the pouch (or leaving teeth marks on the lid of the box!), so I've pretty much given up. I'm sure it's very effective, and would recommend if you don't have a kitty who likes to chew!
I'm really happy with the filter I do suggest that when people buy the litter box you suggest the filter because my daughter bought 2 litter boxes and she didn't know about it until I told her, but in general great product
I loved the original top-entry box but it was just a bit small for my “big guy”. The XL was not only great for the extra room but they also changed the way the liner sat in the box. Now, it hooks to all four sides to keep it from sliding down which was a problem with the previous model. LOVE that. Also, the lid sits much more securely on the top of the box so it can support a cat who is a bit more plump : )
I’ve my new ModKat XL litter box!
Totally eliminates any odors. I have two cats and two Modkat litter boxes, mats and liners. I clean the boxes twice a day and I use the Worlds Best Cat litter and there is no odor in my home. Thank you Modkat.
The filter kit is helping a little with odors control, although I think I need to better place the litter box for optimal results.