Sioux Chief TKO (Total KnockOut) series PVC closet flanges feature an integrally molded cap which allows for DWV pressure testing and prevents debris from entering the drain during rough-in. 3" inside connection can be installed inside 3" (standard, sch. 40 only) PVC pipe. Stainless steel swivel ring with bolt slots/tabs offers added flexibility during toilet bowl installation.
TKO cap holds up to 5 floors (22PSI) test pressure
Patented design prevents knockout from breaking apart and falling down drain line
Smooth inner walls without obstructions or ledges help prevent clogs
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