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The SIOUX CHIEF 889-POTM is a PVC offset closet flange designed for toilet drain connections where the existing drain location does not align precisely with the finished floor rough-in position. This flange features a stainless steel swivel ring and a knockout center, giving installers flexibility during finish work. The 4-inch by 3-inch configuration connects a 4-inch hub or inside-fit 4-inch pipe on the toilet side to a 3-inch drain line below, making it compatible with standard residential drain systems. Licensed plumbers install this fitting during rough-in or remodel work where offset tolerance is required.
The 889-POTM is suited for residential toilet installations where the floor drain is slightly out of position relative to the toilet horn. The offset design provides adjustment without cutting into the subfloor or relocating drain piping. The stainless steel swivel ring rotates to position bolt slots precisely, accommodating varied toilet footprint orientations. The knockout center allows the installer to open the drain path only after the flange is set, reducing debris entry during construction phases.
Designed as an OEM-style replacement and new-installation offset closet flange for residential PVC drain systems requiring a 4-inch by 3-inch flange connection.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code. Shut off the water supply and ensure the drain line is clear before setting the flange. Solvent-weld the PVC body to the drain pipe following manufacturer cement and primer instructions, and allow full cure time before setting the toilet. Do not over-torque the closet bolts, as PVC flange ears can crack under excessive load.
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