I shudder to think of using such a device on my cats. I think it would traumatize them soooo much, and I would worry about them having a heart attack, seriously. I imagine being put in a cage, then submerged into water...and I have the ability to rationally think "I know they aren't going to drown/kill me". I don't think that device is supposed to be used in the tub. There are other ways to bathe a cat. I just don't think it is going to be the right thing to do.