Rectorseal Clean Check 3" or 4" Flapper for Rebuild Kit (New Style)

Clean Check 3" or 4" Flapper for Rebuild Kit (New Style). Prevents sewage backup into plumbed structures as a result of a plugged sewer system, excess volume in the system or groundwater flooding. Features: No manhole required Installs discretely outside - up to 12' below ground level Above ground outdoor maintenance accessibility eliminates hidden access indoor applications, and the sewer odor and mess of indoor maintenance Complies with UPC, IPC and IRC codes & ASME and ICC-ES standards