I purchased a 14-inch rough-in toilet because a 12-inch rough-in toilet would be too far from the back wall. The toilet came and a 14-inch rough-in adaptor also came in a seprate box. I hired a plumber to install the toilet. He installed the 14-inch rough-in adaptor and put the toilet bowl on top. the toilet installation holes did not line up with the clamps for the 14-inch rough-in. The bowl still lines up with the 12-inch rough-in adaptor kit. Not happy with Hohler and after spending extra money for a 14-inch rough-in toilet and to be sent a regular toilet was very disappointing.