super expensive one on Amazon, but her cheapness didn't want to spend that much money. Mommy really hated the designs of most Dog Water Dispensers as you have to turn the tank upside down and put it on. And they are pretty heavy to lift if you get a large one. Fenris and Tuiren have already been through several and Mommy hated everyone of them. So she really liked the design of this one as you just took the lid off to add water (no picking the tank up and turning it upside down) and it had wheels so she could roll it to wherever she wanted, but she didn't like the price. Then she hit on the novel idea of getting this dog bowl that holds three gallons. Daddy ran the short hose to it.