Fluidmaster, the leading global supplier of fluid management solutions, is found in more toilets than all other brands combined. As the customer's first choice and preferred supplier of toilet tank trim, we have 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. Our reputation for superior quality continues to grow as we cultivate and support partnerships around the world with retailers, wholesalers and toilet manufacturers, re-affirming the company as a leader in innovation and global supply of sanitaryware products. Pioneering Innovation for More Than 50 Years.