Description NuFlush 2.3-Inch Flush Valve for Two-Piece Toilets Upgrade your toilet’s performance with this precision-engineered 2.3-inch flush valve designed to fit standard two-piece toilets. Chrome-plated Single Flush Button for Toilet, Ratchet (48 mm) Comes with nylon nuts and bolts plus a high-quality gasket for a secure, leak-free installation.