The EPA's WaterSense program announced the first final product specification, which covers high-efficiency toilets (HETs) - those that use 1.28 gallons per flush (gpf) or less. With the announcement of the final HET specification, manufacturers and retailers and distributors that produce or sell these water-efficient plumbing fixtures are welcome to join the program. Once manufacturers have a signed partnership agreement in place, they may begin the third-party certification process to obtain permission to use the WaterSense label. Only HETs meeting EPA’s performance and efficiency requirements will be allowed to bear the WaterSense label.
EPA's WaterSense Gets First Product Spec
March 16, 2007