Flusso TVH.2691E 1.40" Extension Kit - For Use with TVH.2691The TVH. 2691E extension kit consists of two diverter handle extensions, a temperature handle extension and two output extensions. This extension kit is to be used with the Flusso TVH. 2691 valve. It is used when the valve is installed too deep into the wall and the handles need to be extended out further. The extension measures 1. 4 in length. A separate finish cover may be needed [not included] to cover the exposed brass part of the extension on the