4" Hub, Total Knockout Closet Flange (TKO), One-Piece, SCH40 PVC

4" Hub, Total Knockout Closet Flange (TKO), One-Piece, SCH40 PVC

The 886-4PT from Sioux Chief is a 4” Hub, Total Knockout Closet Flange (TKO), One-piece, SCH40 PVC. It features an integrally molded cap which allows for DWV pressure testing and prevents debris from entering the drain during rough-in. 4" Hub connection accepts regular 4" PVC pipe (both sch. 40 and 80). 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;
  • UPC listed;
  • Smooth inner walls without obstructions or ledges help prevent clogs;
  • Made in the USA;
  • Comforts to ASTM D2665.

Technical Specifications:

  • Connection: 4" Hub (accepts/fits over 4" Sch. 40 or 80 PVC pipe);
  • Material: 1-piece PVC body and flange;
  • Installation type: Solvent Weld (PVC glue);
  • For installation with: PVC pipe;
  • Overall Height: 2-1/8";
  • Flange Outer Diameter: 7";
  • Knockout diameter: 4-1/4";
  • Flange thickness (height): 7/16";
  • Screw center: 6".
Product Specs
Flange Outer Diameter: 7"
Flange thickness (height): 7/16"
For installation with: PVC pipe
Installation Type: Solvent Weld (PVC glue)
Knockout diameter: 4-1/4"
Material1 1-piece PVC body and flange
Overall height: 2-1/8"
Screw Center: 6".

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  • Views: 5540
  • 4" Hub, Total Knockout Closet Flange (TKO), One-Piece, SCH40 PVC QR Code
  • Model: 886-4PT
  • MPN: 886-4PT
  • Availability: Temporary Unavailable
  • $ 5.25


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Tags: Drains, Plumbing Supply, PEX, Pipe Fittings, Residential Plumbing