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White PVC flush bushing hub by spigot fitting

Mueller Industries, Inc.

Mueller Industries, Inc. 1WKF5 trap

SKU CH-DT2A-ZZ1MJ MPN 1WKF5

PVC Schedule 40 flush bushing reduces 3-inch spigot to 2-inch socket for gravity-flow drainage systems

  • TypeDrain Components
  • ColorWhite
  • PVC Schedule 40 construction resists corrosion and handles gravity-flow drainage
  • Hub-to-spigot design connects 3 in and 2 in pipe sizes directly
  • White finish matches standard plumbing installations for a clean look
  • Rated from -20 °F to 140 °F for reliable performance in cold and hot conditions
  • Male spigot and female socket ends allow quick solvent-weld assembly

Product Identity

The Mueller Industries 1WKF5 is a PVC flush bushing designed to connect a 3-inch spigot to a 2-inch socket in Schedule 40 drainage systems. It serves plumbers and maintenance crews who need a straight, solvent-weld reduction in gravity-flow piping.

Installation Check

Verify that both the existing 3-inch pipe and the 2-inch fitting are Schedule 40 PVC rated for gravity flow. Confirm the system operates within the -20 to 140 degrees Fahrenheit range and that solvent cement compatible with PVC is available for the joint.

Fit Guidance

This bushing suits installers reducing a 3-inch hub to a 2-inch spigot in white PVC drain lines. It does not suit pressurized applications, non-PVC pipe materials, or situations requiring an included seal or a different size reduction.

Highlights

  • PVC Schedule 40 construction resists corrosion and handles gravity-flow drainage
  • Hub-to-spigot design connects 3 in and 2 in pipe sizes directly
  • White finish matches standard plumbing installations for a clean look
  • Rated from -20 °F to 140 °F for reliable performance in cold and hot conditions
  • Male spigot and female socket ends allow quick solvent-weld assembly

Specifications

TypeDrain Components
ColorWhite
BrandMueller Industries
Model1WKF5

Questions about this item

What comes with the 1WKF5 PVC flush bushing and do I need to buy a seal separately?

The fitting is a Schedule 40 PVC flush bushing with a 3 in spigot and 2 in socket. A seal is not included, so a compatible gasket or solvent cement must be purchased separately for a watertight joint.

Should I choose the 3 in x 2 in size or a different configuration for my drain line?

The 1WKF5 is a single 3 in male spigot by 2 in female socket reducer. Select it when you need to step down from a 3 1/2 in outside-diameter pipe to a 2 3/8 in outside-diameter pipe in a gravity-flow system.

What does the 140 °F temperature rating mean for a real installation?

The bushing is rated for continuous use up to 140 °F and down to -20 °F, making it suitable for standard residential drain, waste and vent lines carrying hot water discharge.

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