A.Y. McDonald 5149 CTS x Femal...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$45.71
A.Y. McDonald 5149 CTS x Female Flare Lead-Free Adapter, 3/4"

A.Y. McDonald 5149 CTS x Female Flare Lead-Free Adapter, 3/4"

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Model: 5149-180

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

$45.71
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A.Y. McDonald 5149 CTS x Female Flare Lead-Free Adapter, 3/4"

The A.Y. McDonald 5149 is a 3/4" CTS x Female Flare-NL adapter engineered to connect copper tube size (CTS) piping to a female flare fitting for water service and distribution applications. Identified in manufacturer records as part number 74755-22, this fitting provides a reliable transition point between CTS pipe and flare-style connections, and it is manufactured to meet lead-free (NL) requirements for potable water systems. Contractors, utilities, and plumbing professionals specifying A.Y. McDonald components can count on this adapter for consistent fit, accurate threading, and dependable sealing in water service installations, whether for new construction, rough-in work, or repair and replacement projects where a secure CTS-to-flare transition is required.

Key Features

  • Trade Size: 3/4" adapter sized for standard CTS piping connections.
  • Connection Type: CTS x Female Flare configuration for a secure transition between copper tube size pipe and flare-fitted connections.
  • Lead-Free (NL) Compliant: Manufactured to lead-free standards, making it suitable for potable water service applications.
  • Adapter Function: Provides a dependable connection point where CTS pipe must interface with a female flare fitting, reducing the need for additional transition hardware or field modifications.
  • Manufacturer Reference: Cross-referenced to A.Y. McDonald part number 74755-22 for accurate identification and ordering by distributors and installers.
  • Consistent Fit: Precision-manufactured threading helps ensure a dependable, leak-resistant seal at the flare connection point.

Certifications & Compliance

  • Lead-Free (NL) Rated for Potable Water Applications

Technical Specifications

  • Trade Size: 3/4"
  • Connection Type: CTS x Female Flare
  • Compliance: Lead-Free (NL)
  • Manufacturer Part Number: 74755-22

Typical Applications

  • Water Service Line Connections
  • Copper Tube Size (CTS) Piping Transitions
  • Residential and Commercial Water Distribution Systems
  • Flare Fitting Adaptation Points
  • Plumbing Rough-In and Repair Work

Why A.Y. McDonald?

A.Y. McDonald manufactures water works and plumbing components engineered for consistent fit and long-term reliability in the field. The 5149 adapter's lead-free construction supports code-compliant installations in potable water systems, giving contractors and utilities confidence in both performance and regulatory compliance. Choosing A.Y. McDonald fittings means specifying components built to a standard of precision that reduces callbacks and installation issues, backed by a manufacturer trusted across water service and distribution projects for decades of field-proven performance.

Manufacturer Resources

Product Specs

Product Subgroup:
Pipe Fittings
Product Group:
Plumbing
Department:
Plumbing
Product Type:
Adapter

A.Y. McDonald 5149-180 – Frequently Asked Questions

1) What sizes does the A.Y. McDonald 5149 CTS x female flare adapter come in?
Two sizes: 3/4 inch (part 5149-180) and 1 inch (part 5149-181). Size refers to the CTS tubing size on the compression end and the matching flare thread on the other.
2) Is the A.Y. McDonald 5149 adapter lead free for potable water service lines?
Yes. The 5149 is an NL (no-lead) adapter, which is why it carries the -NL designation in the part description. That is the configuration water utilities and municipal inspectors expect on potable service line work.
3) What connections are on each end of the A.Y. McDonald 5149 adapter?
One end is a CTS compression connection for copper tube size service tubing, and the other is a female flare thread. It is the transition fitting you use when your service tubing is CTS but the valve, meter setter, or corporation stop you are landing on has a male flare.
4) Do I need a 5149 adapter or a plain CTS coupling for my water service line?
Use a coupling when both sides are the same CTS tubing. The 5149 is only needed where you have to change connection type: CTS tubing on one side, a male flare fitting on the other. If nothing in the run has flare threads, it is the wrong part.
5) Will the 3/4 inch A.Y. McDonald 5149 adapter work with 3/4 inch PE pipe?
The 5149 is built for copper tube size (CTS) connections. Standard CTS-sized polyethylene service tubing shares that outside diameter, but PE normally requires an insert stiffener at the compression joint. Match the fitting to the tubing OD and use the stiffener your tubing manufacturer calls for.
6) Can I reuse an A.Y. McDonald 5149 adapter if I have to cut the service line back?
The flare side is a mechanical thread and reconnects fine. The CTS compression side uses a gasket and nut set on the tubing when made up; if you break that joint, replace the gasket and re-make onto clean, round, deburred tubing rather than reusing a deformed one.
How fast can I get the A.Y. McDonald 5149-180 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 5149-180 come with a warranty?
Absolutely. The A.Y. McDonald 5149-180 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 5149-180?
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
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