A.Y. McDonald Lead-Free Flare ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$144.29
A.Y. McDonald Lead-Free Flare Tee Fitting

A.Y. McDonald Lead-Free Flare Tee Fitting

(No reviews yet) Write a Review

Model: 5120-145

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

$144.29
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

A.Y. McDonald 5121-149 Lead-Free Flare Tee, 1 Inch

The A.Y. McDonald 5121-149 is a 1" Tee fitting configured Flare x Flare x Flare, designed for use in potable water and plumbing supply lines where a reliable three-way flare connection is required. Identified by manufacturer part number 74760, this tee is built to the NL (No-Lead) standard, making it suitable for potable water applications where lead-free construction is required by code. The three matching 1" flare connections allow the fitting to join flared copper or tubing runs at a branch point without soldering, providing a mechanical, leak-resistant seal across all three ports. A.Y. McDonald is a long-established name in plumbing and waterworks fittings, and this tee is manufactured to deliver dependable, code-compliant performance in residential and light commercial piping systems where branching an existing 1" flare run is necessary without disturbing the surrounding installation.

Key Features

  • Trade Size: 1" connections on all three ports for straightforward matching to 1" flare tubing runs.
  • Configuration: Tee fitting with Flare x Flare x Flare connections, allowing a branch line to be added to an existing run.
  • Connection Type: Flare fittings provide a mechanical seal, allowing installation without soldering or brazing.
  • Lead-Free (NL) Construction: Manufactured to the No-Lead standard for use in potable water distribution systems.
  • Manufacturer Reference: Identified by A.Y. McDonald part number 74760, ensuring accurate cross-reference for replacement or specification.
  • Solder-Free Installation: The flare-type ports let installers add a branch connection quickly, without open flame or sweating joints.

Certifications & Compliance

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

Technical Specifications

  • Product Type: Tee
  • Size: 1" x 1" x 1"
  • Connections: Flare x Flare x Flare
  • Manufacturer Part Number: 74760
  • Lead Content: NL (No-Lead)

Typical Applications

  • Potable Water Supply Line Branching
  • Residential Plumbing Installations
  • Light Commercial Plumbing Systems
  • Flare Tubing Repair and Retrofit Work
  • New Construction Water Distribution Piping

Why A.Y. McDonald?

A.Y. McDonald fittings are manufactured to meet the demands of professional plumbing and waterworks installations, and the 5121-149 tee is built to the Lead-Free (NL) standard required for potable water applications. Its three-way Flare x Flare x Flare configuration offers a dependable, solder-free connection method for branching 1" tubing runs. Choose the A.Y. McDonald 5121-149 for a code-compliant, reliable fitting from a trusted manufacturer in the plumbing supply industry, backed by a clear manufacturer part number for easy cross-reference and reordering.

[{"name": "Product Type", "value": "Tee"}, {"name": "Trade Size", "value": "1\""}, {"name": "Connection Type", "value": "Flare"}, {"name": "Configuration", "value": "Tee (Flare x Flare x Flare)"}]

Manufacturer Resources

Product Specs

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

A.Y. McDonald 5120-145 – Frequently Asked Questions

1) What sizes does the A.Y. McDonald lead-free flare tee come in?
Two trade sizes: 3/4 inch (part number 5120-145) and 1 inch (part number 5121-149). Both are full tees with all three ports the same size, so the 1 inch version is 1 x 1 x 1 flare and the 3/4 inch is a matched 3/4 inch three-way. There is no reducing configuration, so if your branch needs to step down you will need a separate reducing adapter off the tee.
2) Can I use this flare tee on potable water lines?
Yes. The A.Y. McDonald flare tee is built to the NL (No-Lead) standard and is rated lead-free for potable water use, which is what plumbing code requires on drinking water distribution. It is used on residential and light commercial supply lines and on new construction water distribution piping.
3) Do I need to solder this tee in, or is it a mechanical connection?
No soldering. All three ports are flare connections, which seal mechanically when the flared tube end is drawn against the fitting by the flare nut. That means no torch, no sweating joints, and no open flame permit issue when you are branching a line in a finished space.
4) I need to add a branch to an existing 1 inch flare run without tearing out the piping. Is this the right fitting?
That is exactly the case this tee handles. Cut in at the branch point, flare the cut ends, and the three matching 1 inch flare ports (part 5121-149) let you pick up the run and the new branch without disturbing the rest of the installation. It is also used for flare tubing repair and retrofit work.
5) Will this tee work on copper tubing, or does it need special tube?
It joins flared copper or other tubing runs. The tube end has to be properly flared with a flaring tool and fitted with a flare nut; the tee itself provides the flare seats on all three ports. Straight unflared tube, or tube prepped for compression or sweat, will not seal against it.
6) What A.Y. McDonald part number do I order for the 1 inch flare tee?
Order 5121-149 for the 1 inch. A.Y. McDonald also references that same tee under part number 74760, so either designation should pull the correct item. For 3/4 inch, the part number is 5120-145.
7) Does the flare tee come with flare nuts?
The tee supplies the three flare seats only. Flare nuts and the flared tube ends are made up on the tubing side, so plan on having nuts on the run and the branch before you set the fitting, plus a flaring tool to form the tube ends.
How fast can I get the A.Y. McDonald 5120-145 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 5120-145 come with a warranty?
Absolutely. The A.Y. McDonald 5120-145 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 5120-145?
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 5120-145 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!