A.Y. McDonald X-Riser Polyethy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$77.32
A.Y. McDonald X-Riser Polyethylene Service Line Riser, Zinc Die Cast MNPT Fitting

A.Y. McDonald X-Riser Polyethylene Service Line Riser, Zinc Die Cast MNPT Fitting

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Model: 4430-003

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

$77.32
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A.Y. McDonald X-Riser Polyethylene Service Line Riser, Zinc Die Cast MNPT Fitting

The A.Y. McDonald X-Riser is a below-grade-to-above-grade transition riser designed to connect buried IPS polyethylene service pipe to an above-grade threaded connection. This riser is available across a range of IPS polyethylene tubing sizes and SDR wall ratings — including 1/2" IPS SDR 7 (.090" wall), 3/4" IPS SDR 11 (.095" wall), and 1" IPS SDR 11 (.119" wall) — each terminating in an MNPT zinc die cast fitting. Plumbers and utility installers use risers like this one to bring a buried water or gas service line up out of the ground to a meter, curb stop, or building connection without requiring a field-fabricated transition joint.

Key Features

  • Trade Size Range: Available in 1/2", 3/4", and 1" IPS polyethylene tubing sizes for standard service line connections.
  • Wall Thickness / SDR Rating: 1/2" IPS is SDR 7 (.090" wall); 3/4" and 1" IPS are SDR 11 (.095" and .119" wall respectively), matching standard IPS polyethylene service tubing specifications.
  • Threaded End Connection: MNPT (male national pipe thread) fitting at the terminal end for direct connection to meters, curb stops, or other threaded components.
  • Zinc Die Cast (ZDC) Fitting: The threaded transition fitting is constructed of zinc die cast material for a durable mechanical connection between the polyethylene tubing and the threaded end.
  • Factory-Fused Transition: The polyethylene-to-fitting joint is factory-made, reducing the need for field fusion or threading work at the job site.
  • IPS Sizing Compatibility: Built to IPS (iron pipe size) dimensions for compatibility with standard polyethylene service line components and fittings in the same size class.
  • Configuration: Selectable MNPT thread size paired with a fixed overall riser length per option, such as 3/4" MNPT x 36".

Technical Specifications

  • Tubing Sizes: 1/2", 3/4", 1" IPS
  • Wall Ratings: SDR 7 (.090" wall) for 1/2" IPS; SDR 11 (.095" / .119" wall) for 3/4" and 1" IPS
  • End Connection: MNPT
  • Fitting Material: Zinc Die Cast (ZDC)
  • Configuration: 3/4" MNPT x 36" (option shown; other size/length combinations available)
  • Product Size: 3/4"

Typical Applications

  • Underground-to-above-grade service line risers for water utility installations
  • Transition connections between buried polyethylene service pipe and meter or curb stop assemblies
  • New service line installation and replacement of aging or damaged risers
  • Rough-in utility and underground plumbing connections requiring a threaded above-grade termination

Why A.Y. McDonald?

A.Y. McDonald manufactures the X-Riser with SDR-rated IPS polyethylene tubing and a zinc die cast threaded fitting to provide a consistent, factory-made transition from buried service pipe to above-grade threaded connections. For contractors and utility installers working with 1/2", 3/4", or 1" IPS polyethylene service lines, this riser offers a straightforward way to complete the underground-to-above-grade connection without additional field fabrication.

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Manufacturer Resources

Product Specs

Product Type:
Service Riser
Connection Type:
Threaded
Configuration:
3/4" MNPT x 36"
Department:
Plumbing
Product Group:
Plumbing
Product Subgroup:
Fittings and Valves
list_batch:
AYM-20260924
Product Material:
Zinc Die-Cast
Product Size:
3/4"

A.Y. McDonald 4430-003 – Frequently Asked Questions

1) What is an A.Y. McDonald X-Riser used for on a water service installation?
The X-Riser is a below-grade-to-above-grade transition. Buried IPS polyethylene service pipe comes up out of the trench and terminates in a male NPT threaded end, so you can land directly on a meter, curb stop, or building connection. The poly-to-fitting joint is made at the factory, so there is no field fusion or field threading needed at the transition itself.
2) Will the X-Riser connect to my existing polyethylene service tubing?
It is built to IPS (iron pipe size) dimensions, so it mates with standard IPS polyethylene service line components and fittings in the same size class. Where it will not work is CTS-sized poly: IPS and CTS tubing have different outside diameters, so confirm your buried line is IPS before ordering.
3) Is the threaded end on the A.Y. McDonald X-Riser male or female?
Male. The terminal fitting is MNPT, so the riser threads into a female inlet on a meter setter, curb stop, or coupling. If the component you are landing on is also male, you need a female-by-female coupling or a union between them.
4) What material is the fitting on the X-Riser, and does that matter for a buried install?
The threaded transition fitting is zinc die cast (ZDC). That is a durable mechanical connection between the poly tubing and the thread, and it is the fitting material to confirm against your utility's specification, since some water authorities require brass at the riser transition rather than zinc.
5) Do I have to specify a riser length when ordering, or is it fixed?
Length is fixed per option rather than cut to order. Each configuration pairs an MNPT thread size with a set overall riser length, for example 3/4 inch MNPT x 36 inches. Work out your bury depth plus the above-grade stick-up you need before choosing.
6) Why does the SDR rating matter when picking a poly service riser?
SDR sets the wall thickness for a given outside diameter, which sets the pressure rating of the tubing. On the X-Riser the 1/2 inch IPS is SDR 7 with a .090 inch wall, while the 3/4 and 1 inch are SDR 11 at .095 and .119 inch. Matching SDR to the existing service line keeps the pressure class of the run consistent and keeps insert or compression fittings sized correctly.
7) Is this a good choice for replacing a corroded or damaged existing service riser?
Yes, replacement of aging or damaged risers is one of the intended uses, along with new service installs and rough-in utility work. For a swap, match the trade size and SDR of the buried poly you are reconnecting to and confirm the new riser's fixed length reaches from your bury depth to the meter or stop height.
How fast can I get the A.Y. McDonald 4430-003 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 4430-003 come with a warranty?
Absolutely. The A.Y. McDonald 4430-003 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 4430-003?
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 4430-003 from ZenSupply?
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