WDI offers EcoFlush, a state-of-the-art dual function, pressurized flushing system. The design of EcoFlush provides the user a choice of 1.1 gallons (4 liters) for liquid waste and 1.6 gallons (6 liters) for discharging solid waste. The results are a savings of 40% more water than any conventional 1.6 pressure type unit. The flush action is operated by an Easy-Touch trip-lever that allows the use to lightly press down for a partial flush or lightly lift up for a full flush.WDI International, (949) 250-4576.