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  Fluidmaster is the #1 toilet repair brand in the world. Fluidmaster parts are found in more toilets than all other brands combined. As a customer’s first choice and preferred supplier of toilet tank trim, Fluidmaster has been ingeniously engineering the internal flushing mechanisms of toilets for more than half a century. Built on and inspired by an unsurpassed history of innovation, Fluidmaster has become an icon in the plumbing industry. Fluidmaster’s reputation for superior quality continues to grow as retail, wholesaler and international trade business and OEM partnerships are cultivated, further establishing the company as an innovative leader and global supplier in the toilet care industry.