Specially designed bottle evacuates completely with no waste, using all the soap you pay for. Translucent cover allows for continuous soap viewing. Soap reservoir eliminates soap waste and provides continuous service to customers. Removable soap reservoir holds 220mL of soap, making the total capacity 1220mL. Reduce soap costs by up to 40% with an adjustable dose rate - .76mL, 1.2mL, 1.54mL - which helps control overall usage.