Is Moen M-DURA Upgrading to M-CORE Valves?


Moen is upgrading their tub and shower valve system, and for most homeowners and all contractors, this is great news. M-CORE valves are easy to install and give you so much flexibility to upgrade down the road. Some people who may have concerns are homeowners with their M-DURA showers built on the old Moentrol system. What happens if you need to replace your M-DURA trim? Do you have to replace the valve, too? Or maybe you want an M-DURA shower with M-CORE. Is that available? These are questions that need to be answered.


M-DURA is a commercial-grade collection, which presents unique concerns, questions, and solutions. If you have a question that is not answered here, please do not hesitate to contact us.

Can I Upgrade M-DURA Trim to the M-CORE Valve System?

No. If you want M-DURA valve trim, you must build it onto the old Moentrol rough-in system.

Will Moen Still Make M-DURA Trim for Moentrol Valves?

If you have the M-DURA collection installed on the Moentrol valve system, you might not have to upgrade to M-CORE when you want to replace the trim. M-DURA trim options will still be available for:

  • Moentrol transfer only

To be clear, if you need to replace the valve and transfer trim, or valve only trim, you're going to find a solution other than M-DURA.

How Do I Know If My Valve Is M-CORE or Moentrol?

m-core valve vs moentrol

Although you may not know much about what you're looking at, and both valves are made with brass bodies, it's pretty easy to tell the difference. M-CORE (pictured on the left) has more of a polished sheen to it. Whereas, Moentrol (pictured on the right) has more matted brass color.

Note: the pictured valves are for valve and transfer assemblies, which allow you to divert water from the tub to the shower, and vice versa. If you don't have a tub, it's just a shower installation, then the valve configuration won't include the top part.

Buy Moen M-DURA at PlumbersStock

As Moen describes it, The residential-inspired styling of the M-DURA Modern Suite allows you to create bathrooms that look as outstanding as they function. These attractive fixtures feature more contemporary design elements while still meeting the essential quality and compliance needs of commercial bathroom construction.

If you need anything from the M-DURA collection or a Moentrol valve, we've got it here at PlumbersStock. Don't hesitate to contact us if you have any questions.

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