For efficient chemical dosing, choose this 400ml Rubbermaid toilet seat cleaner dispenser. When used with the Rubbermaid toilet cleaner (FB399 - sold separately), this dispenser will deliver a consistent, 0.2ml dose of solution. This not only minimises expensive wastage, but also ensures staff are measuring out the correct amount of solution needed to effectively clean your toilet seats, handles and other washroom facilities. And thanks to a handy viewing window, it's easy to see when the solution needs replacing too - so you can make sure the dispenser is always stocked up and ready for use.