From AquaPaw

The Aquapaw® Pro is designed with larger dogs with thicker coats in mind to be the easiest and most efficient way to bathe your pet at home. The combination of silicone sprayer and scrubber-in-one allows you to brush and rinse your pet's coat simultaneously. The innovative 2-stage button mechanism allows you to 'Click' the sprayer to LOW, HIGH, and OFF entirely with one hand so you're never fumbling to adjust the water flow and can keep your pet calm.

More Info