Manufacturer: ProfloTank P/N: 5112 Color: WhiteRough-In: 12"Bolt Width: 5.75" Flush Valve Diameter: 2"Gallons per Flush: 1.6 This is a direct replacement for the Crane 3742 tank. The 3-742 is no longer available from the manufacturer so we have discovered this tank will fit on your bowl perfectly. It does have a different shape but the same bolt pattern to attach to your bowl. Normally our tanks are the porcelain tank portion only, but this one is a complete set including the tank, tank lid, trip lever, fill valve, flush valve, flapper, and bolts. Simply unhook your old tank, put this one in place (careful not to overtighten the bolts and crack the new tank), and hook the water supply back up and you are good to go. This is easier and more economical than replacing the entire toilet. The lid and tank are shipped in separate boxes to ensure that it arrives safely.