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" Hub x 4" Inside connection accepts regular 3" PVC pipe (both sch. 40 and 80) or can be installed inside 4" (standard, sch. 40 only) PVC pipe. One-piece PVC, solid construction.
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
Made in the USA
Comforts to ASTM D2665.
Connection: 3" Hub (accepts/fits over 3" Sch. 40 or 80 PVC pipe) or 4" Inside Fit (fits inside 4" Sch. 40 PVC pipe)
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