Ontario, Calif. — IAPMO R&T, North America’s premier third-party certification body for plumbing, mechanical, and water treatment products, has earned approval to begin certifying high-efficiency flushometer-valve water closets to the U.S. EPA’s new final specification for the WaterSense® consumer product-labeling program. Flushometer-valve toilets are typically found in commercial, institutional, or industrial restrooms and have two Read more