Plastic Made in the USA WATER CLOSET DIAPHRAGM ASSEMBLY: Our Regal water closet diaphragm assembly kit is intended to replace worn or end of service life assemblies. The replacement assembly has a natural rubber diaphragm and brass bypass that will ensure an accurate flush every time. COMPATIBILITY CHECK: This water closet diaphragm assembly is specifically designed to work as a replacement for our line of Regal Flushometers. Regal water closet diaphragm replacements come in 1.6 gpf, 3.5 gpf, and 4.5 gpf. Always make sure to check part compatibility to ensure a quick, hassle-free repair. INTELLIGENT DESIGN: Our Diaphragm Assemblies are specially crafted to limit water closet and urinal water consumption. Worn-out diaphragms can lead to water waste or incorrect flushing amounts. Optimize your flushometers to reduce costs, preserve water, and promote sustainability. SLOAN GENUINE PARTS: Extend the life of your Sloan products. Our products perform at their highest levels when maintained exclusively using Sloan Genuine Parts. We offer the largest selection of best-in-class parts, manufactured and tested to Sloan specifications, specifically designed for the most reliable commercial restroom products. This means fewer repairs and protects your investments. WATER CONNECTS US: Every day around the world, Sloan products connect the systems that manage our planet?s most precious resource. As the world?s leading manufacturer of commercial plumbing systems, we?ve spent more than a century pioneering smart, water-saving restroom solutions that are built to last a lifetime.