Mini - 3 inch water bowl width, holds 8 fl oz
Regular - 4 inch water bowl width, holds 15 fl oz
Bigger - 4 inch water bowl width, holds 26 fl oz
Posted by SANDI on 01/25/16 6:30 PM
I bought one of these years ago. The tab for the water finally wore out after years of use so I had to look for another one. The reason I like these besides them being sturdy and easy to use, is if we are on the road in the car, I can open up the tab and fill the bowl so my dog can get a drink and the unused water can drain back into the bottle. Yes, they are getting backwash water next time but I don't think they care. It's better because you don't run out of water quickly by having to throw the water out when they are done.