Toto Neorest 1.2 Or 0.8 GPF Dual Flush In Wall Tank UnitThe TOTO NEOREST 1. 2 or 0. 8 GPF Dual Flush In Wall Tank Unit is designed for use with the NEOREST WX1 or WX2 wall hung toilet and top unit. The in wall unit provides you with the opportunity to save up to 9 inches of floor space within your bathroom. The NEOREST in wall tank unit is auto flush capable and provides a dual flush option for the right amount of flush for the required job. You can select between a 0. 8 or a 1. 2 gallons per flush with a