The SFA Saniflo white toilet flange allows you to hide the pump behind any finished wall. This extension pipe, which is used with the Sanitop, Saniplus, Sanipro and Sanibest products, speeds up the installation time of macerators. The flange's inner gasket connects to the rear spigot of the toilet without any difficulty. The sealed connection keeps water from seeping out once the toilet is flushed. The pipe end (sleeve) has a 4" diameter and the bell housing has a 5" diameter. Upon use, raise the toilet bowl up 3/8" for additional gravity flow toward the macerator box.