A.Y. McDonald 74758-22 Couplin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$37.17
A.Y. McDonald 74758-22 Coupling Fitting

A.Y. McDonald 74758-22 Coupling Fitting

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Model: 74758-22-3/4

In Stock (leaves warehouse same day if ordered before 3pm ET)

$37.17
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A.Y. McDonald 74758-22-3/4 5140-111 Series 3/4" Coupling

The A.Y. McDonald 74758-22-3/4 is a 3/4" coupling from the 5140-111 series, engineered as a rough-in connection fitting for joining pipe runs behind the wall or below the floor. Identified by model number 74758-22-3/4, this coupling is built to the A.Y. McDonald 5140-111 platform and is sized for 3/4" pipe. It is intended for use by licensed plumbers and contractors during rough-in installation, where a dependable, code-oriented connection point is required to extend or join a 3/4" supply or distribution line. As a straight coupling, its function is to provide a single, in-line joint between two lengths of 3/4" pipe, allowing installers to extend runs, repair damaged sections, or transition between fitting locations without introducing unnecessary complexity into the rough-in layout.

Key Features

  • Trade Size: Sized for 3/4" pipe, matching common residential and light commercial rough-in branch and supply lines.
  • Coupling Configuration: A straight, in-line fitting designed to join two sections of 3/4" pipe at a single connection point.
  • 5140-111 Series: Part of the A.Y. McDonald 5140-111 fitting platform, identified by model 74758-22-3/4 for accurate cross-reference and reordering.
  • Rough-In Application: Built for installation behind walls, under floors, or in mechanical spaces where the fitting will be concealed once finish work is complete.
  • A.Y. McDonald Manufacturing: Sourced from A.Y. McDonald, a long-standing supplier of waterworks and plumbing rough-in components to the trade.

Technical Specifications

  • Model Number: 74758-22-3/4
  • Series: 5140-111
  • Trade Size: 3/4"
  • Fitting Type: Coupling

Typical Applications

  • Residential and Commercial Rough-In Plumbing
  • Extending or Repairing 3/4" Pipe Runs
  • New Construction Water Distribution Piping
  • Renovation and Retrofit Plumbing Work
  • Behind-the-Wall and Under-Floor Installations

Why A.Y. McDonald?

A.Y. McDonald has supplied plumbing and waterworks professionals with rough-in fittings built for dependable field performance. The 74758-22-3/4 coupling continues that focus, offering a straightforward 3/4" connection point for plumbers who need a consistent, identifiable part number when specifying or reordering fittings for a job. Choosing an A.Y. McDonald coupling for your 3/4" rough-in connections helps keep material sourcing simple and traceable across a project.

Manufacturer Resources

Product Specs

list_batch:
AYM-20260924
Department:
Plumbing
Product Subgroup:
Pipe Fittings
Product Type:
Coupling
Product Group:
Plumbing

A.Y. McDonald 74758-22-3/4 – Frequently Asked Questions

1) What sizes does the A.Y. McDonald 74758-22 coupling come in?
Two trade sizes: 3/4 inch, ordered as model 74758-22-3/4, and 1 inch, ordered as 74758-22-33-1IN. Both are straight in-line couplings, so pick the one that matches the pipe run you are joining. There is no reducing version, so a 3/4 to 1 inch transition needs a different fitting.
2) What does a straight coupling like the A.Y. McDonald 74758-22 actually do on a rough-in?
It makes a single in-line joint between two lengths of pipe. Plumbers use it to extend a supply or distribution run, splice in a repair on a damaged section, or carry a line between fitting locations. It does not change direction and it does not branch, so an elbow or a tee is the fitting you want for those.
3) Will the 3/4 inch A.Y. McDonald coupling work on a residential branch line?
Yes. The 3/4 inch size matches the branch and supply lines used in common residential and light commercial rough-in work, which is exactly what the 5140-111 series coupling is sized for. For a main or a heavier distribution run at 1 inch, order the 1 inch version instead.
4) What part number do I give my supplier to reorder the 3/4 inch A.Y. McDonald coupling?
Use 74758-22-3/4, in the A.Y. McDonald 5140-111 series. The 1 inch counterpart is 74758-22-33-1IN. Quoting the model number keeps the reorder matched to what is already in the wall on a multi-phase job.
5) Is the A.Y. McDonald 74758-22 coupling meant to be concealed behind a wall or left accessible?
It is a rough-in fitting, built for installation behind walls, under floors, or in mechanical spaces where it gets covered once finish work is done. That is the intended application, and it is why the part is specified at rough-in rather than at trim-out.
How fast can I get the A.Y. McDonald 74758-22-3/4 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the A.Y. McDonald 74758-22-3/4 come with a warranty?
Absolutely. The A.Y. McDonald 74758-22-3/4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the A.Y. McDonald 74758-22-3/4?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the A.Y. McDonald 74758-22-3/4 from ZenSupply?
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