Rectorseal 97004 Clean Check 4" ABS Extendable Backwater ValveRectorseal 97004 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 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 Additional
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