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White PVC closet flange with attached rubber gasket

OATEY

OATEY 43651 Closet Flange 4" PVC White

SKU CH-D8FE-F0KSQ

Replaces a closet flange on 4-inch cast iron waste lines with a PVC unit that includes a rubber gasket for a watertight seal

  • TypeDrain Components
  • MaterialPVC
  • ColorWhite
  • Twist-N-Set design enables quick replacement installation
  • PVC construction resists rust and corrosion
  • Forms water-tight seal in cast iron drain pipes
  • Fits 4-inch cast iron waste lines
  • Includes attached rubber gasket for secure fit

OATEY 43651 Closet Flange 4" PVC

The OATEY 43651 Closet Flange is a PVC replacement component designed for 4-inch cast iron waste lines. Its white finish resists rust and corrosion while forming a water-tight seal. The unit includes an attached rubber gasket for immediate installation. It suits plumbers and DIYers repairing or replacing toilet connections in residential drainage systems.

Twist-N-Set installation with rubber gasket

The Twist-N-Set design allows the flange to expand inside the pipe without solvent welding or mechanical fasteners. Position the flange, then twist the integrated ring to compress the rubber gasket against the cast iron wall. Ensure the pipe interior is clean and free of debris or old sealant so the gasket seats evenly. Over-tightening can deform the gasket and compromise the seal.

Verify 4-inch cast iron pipe compatibility

Confirm the existing waste line is a 4-inch cast iron pipe with sufficient straight length for the flange body. Check that the pipe inner diameter is not heavily corroded, out-of-round or damaged where the gasket will contact. The flange is not intended for plastic, copper or other pipe materials. Measure the rough-in distance to the finished wall before ordering to ensure proper toilet alignment.

Highlights

  • Twist-N-Set design enables quick replacement installation
  • PVC construction resists rust and corrosion
  • Forms water-tight seal in cast iron drain pipes
  • Fits 4-inch cast iron waste lines
  • Includes attached rubber gasket for secure fit

Specifications

TypeDrain Components
MaterialPVC
ColorWhite
BrandOatey

Questions about this item

How do I confirm the Twist-N-Set flange forms a water-tight seal after installation?

After tightening the flange, run water through the toilet and inspect the joint; a proper seal shows no drips around the cast-iron pipe connection.

Does the package include only the flange and the attached rubber gasket, or are bolts and wax ring also supplied?

The box contains the PVC closet flange with the rubber gasket already attached; mounting bolts and a wax ring must be purchased separately.

Should I choose this 43651 model for a 4-inch cast-iron waste line or is another version needed?

This 43651 Twist-N-Set flange is made for 4-inch cast-iron waste lines; select it when your drain pipe matches that size and material.

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