Original Equipment Manufacturer (OEM) replacement part for the American Standard 738920-0070A flapper. Includes a new 3" (inch) hard flapper and stainless steel chain with hook. Used in multiple American Standard toilets, typically for Cadet model tanks 4019.016, 4021.016, 4027.016 and Cadet model toilets 2403012, 2403500, 2403800, 2403850. Also used with other models, typically with a 1.6 gpf (gallon per flush toilets) flush - information can typically be found printed behind the toilet seat when folded down or inside of the tank. Part may vary slightly due to part revisions by the manufacturer and OEM manufacturer. However, this part will be compatible with all revisions of the 738920-0070A flapper. Easy tool-less installation in less than 10 minutes. Some adjustment of the included stainless steel chain and hook on the flapper may be required as each individual toilet and flush handle will vary slightly. Meets or exceeds all applicable US and Canadian Plumbing Standards including the UPC and CSA. Comes in an economical plastic bag with cost savings passed on to the customer. OEM (Original Equipment Manufacturer) Replacement for American Standard 738920-0070A 3-inch Flapper