Sioux Chief 886-rqk Closet Flange Extension Kit

Product Description

The SIOUX CHIEF 886-rqk Closet Flange Extension Kit is a plumbing assembly used to correct flange height when a finished floor installation leaves an existing closet flange sitting below the finished floor surface. The kit includes three 1/4-inch PVC extension rings along with 427-series mounting bolts. Together, these components raise the flange to the correct elevation and maintain a proper wax ring seal between the toilet horn and the drain. Licensed plumbers and experienced installers use this kit to bring subfloor or tile buildup situations into code-compliant alignment without replacing the entire flange assembly.

This kit is suited for residential and light commercial toilet installations where floor buildup from tile, hardwood, or other finished flooring materials has lowered the effective height of an existing closet flange. It is designed for use with standard 4-inch PVC and cast iron closet flanges. The extension rings stack to accommodate varying degrees of height correction, making this kit a practical solution for renovation and remodel work where flange replacement is not feasible or necessary.

Key Features

• Includes three 1/4-inch PVC extension rings for incremental height adjustment
• Includes 427-series mounting bolts for secure toilet anchor connection
• Compatible with standard 4-inch PVC and cast iron closet flanges
• Supports code-compliant flange elevation alignment on finished floor installations
• Stacking ring design allows flexible height correction for varying floor buildup thicknesses

Compatibility

Designed for use with standard 4-inch PVC and cast iron closet flanges in residential and light commercial drain, waste, and vent systems where finished floor buildup has reduced effective flange height.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and remove the toilet before servicing the closet flange. Ensure all extension rings are seated flush and secure before reinstalling the wax ring and toilet. Do not overtighten the mounting bolts, as this can crack the porcelain base of the toilet.