Pet pongs can lurk deep in your carpets. This Vax Dual has dual rotating power brushes that get deep into the carpet pile, lifting deep, embedded dirt. The spacious twin tanks mean that the clean and dirty water doesn't mix, so you'll always be using fresh water on your carpets.Good to know- The pre-treatment wand and solution is great for dealing with any tricky stubborn marks- Clean your car, upholstery or stairs using the wash tool- Empty the tanks quickly with the easy clips