{"product_id":"fluidmaster-502p21-adjustable-toilet-flapper-2-inch","title":"Fluidmaster 502p21 Adjustable Toilet Flapper 2 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe FLUIDMASTER 502p21 is a 2-inch universal adjustable toilet flapper engineered for residential toilet repair and water conservation. It fits 1.28, 1.6, and 3.5 GPF toilets and replaces worn, corroded, or leaking flappers without special tools. An integrated adjustment dial lets technicians and installers set the exact flush volume needed for the fixture — turn the dial left to increase water per flush or right to reduce it. The flapper is built with antimicrobial protection integrated into the material itself, not applied as a surface coating, helping extend service life and resist bacterial degradation. Plumbers and maintenance professionals install this as a direct upgrade over standard 2-inch flappers.\u003c\/p\u003e\u003cp\u003eThe 502p21 is suited for residential toilet repair work where the existing flapper is causing incomplete flushes, phantom running, or visible leakage at the flush valve seat. Its adjustable design makes it a practical single-SKU solution for properties with mixed GPF toilets, reducing the need to stock multiple flapper variants. Licensed plumbers, maintenance techs, and qualified DIYers use this flapper during routine toilet service calls.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAdjustable flush volume dial compatible with 1.28, 1.6, and 3.5 GPF toilets\u003c\/li\u003e\n\u003cli\u003eAntimicrobial protection built into the flapper material for long-term resistance to bacteria and breakdown\u003c\/li\u003e\n\u003cli\u003eUniversal 2-inch sizing for broad replacement coverage\u003c\/li\u003e\n\u003cli\u003eAddresses common flapper failure modes including leaks and running toilet symptoms\u003c\/li\u003e\n\u003cli\u003e5-year manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct replacement for standard 2-inch toilet flappers in 1.28 GPF, 1.6 GPF, and 3.5 GPF residential toilet applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eShut off the water supply at the fixture stop valve and flush the toilet to drain the tank before removing the old flapper. This installation falls within standard plumbing maintenance scope and does not require special tools or permits in most jurisdictions. After seating the new flapper on the flush valve, adjust the dial to match the toilet's rated GPF before restoring water supply and testing for leaks at the valve seat.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlapper Size\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Flush Volumes\u003c\/strong\u003e: 1.28, 1.6, and 3.5 GPF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Length\u003c\/strong\u003e: 2.36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Width\u003c\/strong\u003e: 4.33 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Height\u003c\/strong\u003e: 7.48 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 5 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Mexico\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: FLUIDMASTER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 502p21\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FLUIDMASTER","offers":[{"title":"Default Title","offer_id":51138820964658,"sku":"502P21","price":25.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305533620.png?v=1778264075","url":"https:\/\/voomisupply.com\/products\/fluidmaster-502p21-adjustable-toilet-flapper-2-inch","provider":"Voomi Supply","version":"1.0","type":"link"}