The Hydro Bath is made by an Australian company. I use the the deluxe model.  It has a side loading door for large dogs, and an insert made of pvc and nylon webbing for small dogs.  It is an enjoyable, comfortable and hassle free way to wash any sized dog (or cat).  The built in pump and heating unit create a warmed ,pressurized shampoo solution which allows full penetration of the pets coat, the result of which is a clean and happy pet.