A.Y. McDonald 5141-134 Lead-Fr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$42.53
A.Y. McDonald 5141-134 Lead-Free 1" x 3/4" CTS Compression Coupling

A.Y. McDonald 5141-134 Lead-Free 1" x 3/4" CTS Compression Coupling

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Model: 5141-134

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

$42.53
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A.Y. McDonald 5141-134 Lead-Free 1" x 3/4" CTS Compression Coupling

The A.Y. McDonald 5141-134 is a 1" x 3/4" CTS compression coupling engineered as a lead-free fitting for potable water service line connections. This reducing coupling joins copper tube size (CTS) piping runs, transitioning from a 1" line down to 3/4", and is built to A.Y. McDonald's lead-free manufacturing standard for safe drinking water applications. The compression-style connection allows for a reliable, gasketed joint without the need for soldering, making it a practical choice for water service installers and municipal water utility crews working on CTS piping systems. Because it is manufactured lead-free, the 5141-134 is suited for jobs where drinking-water safety compliance is a requirement, and its reducing 1" x 3/4" design lets a single fitting handle a transition that would otherwise require multiple parts.

Key Features

  • Trade Size: 1" x 3/4" CTS reducing configuration for transitioning water service line sizes.
  • Lead-Free Construction: Manufactured to lead-free standards for potable water and drinking water service applications.
  • Compression Connection: CTS compression-style joint provides a secure, gasketed seal on copper tube size piping without soldering.
  • Reducing Coupling Design: Connects two different CTS pipe sizes (1" to 3/4") in a single fitting.
  • Solder-Free Installation: The compression joint speeds installation and reduces the tools needed on the job site compared to soldered connections.
  • A.Y. McDonald Manufactured: Sourced from a manufacturer with a long-standing reputation in waterworks fittings and valves.

Technical Specifications

  • Product Type: General Fitting
  • Trade Size: 1" x 3/4"
  • Connection Type: CTS Compression
  • Material: Lead-Free
  • Manufacturer Part Number: 5141-134

Typical Applications

  • Potable Water Service Line Installations
  • CTS Copper Tube Size Piping Transitions
  • Municipal and Utility Water Service Connections
  • Residential and Commercial Water Line Repairs
  • New Construction Water Service Hookups

Why A.Y. McDonald?

A.Y. McDonald builds this 5141-134 CTS compression coupling to lead-free standards, ensuring it is suitable for potable water applications where compliance with drinking water safety requirements matters. The compression-style connection design offers a dependable, solder-free joint for CTS piping transitions, giving installers a straightforward way to connect 1" and 3/4" water service lines with confidence in long-term performance. With its reducing 1" x 3/4" CTS configuration and lead-free construction, this coupling is a practical solution for water utility crews and plumbing professionals who need a code-conscious fitting for potable water line work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Subgroup:
Fittings
Product Group:
Plumbing
Department:
Plumbing
Product Type:
General Fitting

A.Y. McDonald 5141-134 – Frequently Asked Questions

1) Is the A.Y. McDonald 5141 coupling lead-free for potable water?
Yes, the 5141 CTS compression coupling is a lead-free fitting, which is what a water utility or plumbing inspector looks for on potable service work.
2) Will this coupling work on copper tube size (CTS) plastic water service pipe?
It is built for CTS, copper tube size, so it fits tubing sized to the CTS outside diameter. Match the coupling size to the CTS OD of the pipe you are joining, not to an IPS pipe size, or the compression nut and gasket will not seal.
3) I need to go from 1 inch down to 3/4 inch on a water service. Does A.Y. McDonald make that in this coupling?
Yes. Part 5141-134 is the 1 inch x 3/4 inch version, so it makes the reduction inside the coupling itself and you do not need a separate bushing or adapter.
4) Do I need to solder or thread anything to install the 5141 coupling?
No. It is a compression coupling, so the joint is made mechanically by tightening the nuts onto the tubing ends. No torch, no flux, no thread sealant. Cut the tube square and insert it fully before tightening.
How fast can I get the A.Y. McDonald 5141-134 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 5141-134 come with a warranty?
Absolutely. The A.Y. McDonald 5141-134 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 5141-134?
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 5141-134 from ZenSupply?
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