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White PVC Schedule 40 repair coupling hub 4 inch

Mueller Industries, Inc.

Mueller Industries 05968 PVC Repair Coupling 4 in Schedule 40

SKU CH-ZW3C-GM4RA MPN 05968

PVC Schedule 40 repair coupling joins 4-inch pipe for gravity drainage from -20 to 140 degrees F

  • TypeDrain Components
  • Schedule 40 PVC handles gravity-flow drainage reliably
  • 4-inch hub fits 4-1/2-inch outside diameter pipe
  • 3-3/4-inch overall length suits tight repair spaces
  • Rated from -20 to 140 degrees F for year-round use
  • White finish matches standard PVC piping systems

Product Identity

The Mueller Industries 05968 is a PVC repair coupling built for Schedule 40 drainage systems. It connects two sections of 4-inch pipe using female socket ends on each side. Plumbers and maintenance teams use it to restore flow in gravity-fed waste lines without replacing full pipe runs.

Critical Specification

This coupling accepts pipe with a 4-1/2 inch outside diameter and provides a 3-3/4 inch overall installed length. Both ends are female socket connections designed for solvent-weld assembly on Schedule 40 PVC. The joint is rated for gravity flow at maximum operating pressure only.

Thermals, Noise and Power

The white PVC body operates continuously between minus 20 and 140 degrees Fahrenheit without degradation. As a passive fitting it draws no power and produces no noise during normal drainage use. The material resists corrosion and scale build-up throughout its service life.

Highlights

  • Schedule 40 PVC handles gravity-flow drainage reliably
  • 4-inch hub fits 4-1/2-inch outside diameter pipe
  • 3-3/4-inch overall length suits tight repair spaces
  • Rated from -20 to 140 degrees F for year-round use
  • White finish matches standard PVC piping systems

Specifications

TypeDrain Components
BrandMueller Industries
Model05968

Questions about this item

How does the 4 in Schedule 40 size translate when the coupling is installed in a real drainage line?

It matches 4 in Schedule 40 pipe with a 4 1/2 in outside diameter and provides a 3 3/4 in overall length once both sockets are seated.

What does the solvent-weld socket interface limit in everyday use?

The hub sockets create a permanent solvent-weld joint rated for gravity flow only, so it cannot be used on pressurised lines.

What physical clearance is needed to fit the coupling between existing pipe runs?

You need at least 3 3/4 in of straight pipe space to accommodate the overall length of the coupling.

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