Case Manufacturing is probably most famous for being the first company to produce the one-piece toilet in 1925. It first appeared with a side lever and kidney-shaped lid. Called the Cadillac of toilets, the Case one-piece inspired many variations on this style and is still sought by collectors in its original form. Case was also the first company to market its plumbing supplies in a palette of colors.
It was originally established in Buffalo, New York, in 1853 as the W.A. Case & Son Manufacturing Company.
In 1963 Briggs Manufacturing purchased Case, which helped Briggs become a prominent and innovative force in the plumbing industry.