Delta

MultiChoice® Universal Tub / Shower Rough - PEX Cold Expansion

Model#: R10000-MFWS

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Finish: Not Applicable
List Price*: $80.05
Base Parts
R10000-MFWS
List Price*: $80.05
  • MultiChoice® Universal valve body only
  • Accepts single, dual, or dual thermostatic cartridge
  • Cartridge ships with trim
  • Back-to-back capability, WS= With Stops

Installation Information


  • Fittings Type: Universal fittings
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What is the difference between this model with PEX Cold Expansion R10000-MF and the PEX Crimp R10000-PX? Is the insert barb bigger in the former than the latter to accommodate the stretched PEX during installation? Thanks.

Asked by: David
Thank you for your question, David! The difference on these models is solely in the connection for the Inlets in regards to the type being used. Both will feature universal 1/2" connections, however the R1000-PX will have slightly tapered inlets for easier installation. Best regards, Edward
Answered by: DeltaFaucet234
Date published: 2018-10-07

What is the difference between a "box" model and the other roughin valves? Also, what is the difference between a high flow model and non high flow rough in showervalve?

Asked by: Aaron
Hello Aaron, Thank you for your question. The Delta MultiChoice Universal Rough-In "box" model rough-in valves are single model units and non-box models comes as bulk/case of units. The difference between the High Flow and non high flow valves is that there (non high flow valve) a bottom port for a tub spout installation and the R10000-UNBXHF valve does not include a bottom port for a tub spout installation. The high flow valve are designed for shower only installation. Best regards, Tanya
Answered by: Tanya
Date published: 2018-08-11

I dont have tub, is there a part# to plug the lower port ?

Asked by: crg63
Hello Crg63, Thank you for your question! Unfortunaely, we do not manufacture any plugs for this valve. You can cap off the bottom port with your choice of 1/2" outlet pipe plug. The plug can be threaded or soldered. Best regards, Tanya
Answered by: Delta Faucet
Date published: 2018-07-09

On the R10000-MFWS what is the cartridge part number for the thermostatic cartridge?

Asked by: Kenny loftin
Hi Kenny Loftin, Thank you for your question. The RP47201 is the Delta MultiChoice Universal Thermostatic cartridge assembly that would work with the Delta Rough-In Valve R10000-MFWS. This cartridge assembly comes with the Delta TempAssure (Thermostatic) 17T Series shower and tub and shower trim kits. https://www.deltafaucet.com/parts-product-detail?modelNumber=RP47201 Best regards, Tanya
Answered by: Tanya
Date published: 2018-02-11

Pex inlet flow restriction...?

The inner dimension of the PEX inlets on these vale bodies are considerably smaller than any 1/2" cold expansion fitting I've seen (picture attached for reference). After referencing different pictures of these cold expansion PEX valve bodies, some versions show larger inner diameters on the inlets, while some are smaller. My questions/concerns: Wouldn't these inlets with a smaller ID restrict water flow? Can you please provide the actual Flow/GPM of this specific valve body with these small inlets? Are the inner diameters of the PEX inlets different between the WS and non-WS versions? Thank You
Asked by: Grizzle
Grizzle, Thank you for your question! There is no difference in inlet diameter between MF and MFWS or any other with and without stops roughs. The difference in the inlets between PEX (MF, PX) and other valve types (UN, IP, etc.) will not produce a noticeable change in the flow rate as the waterways through the cartridge are more restrictive. The cartridge determines the flow rate, so the maximum flow rate will be determined by the series of trim that you use. Here are the approximate flow rates for each series at 60 PSI: 14 series - 5.8 GPM 17 series - 5.9 GPM 17T series - 7.3 GPM Best regards, Jon
Answered by: DeltaFaucet3
Date published: 2018-06-03

What size PEX pipe is needed for the R10000-PXWS inlet connections?

For the MULTICHOICE® UNIVERSAL ROUGH VALVE BODY - R10000-PXWS What size PEX pipe is needed for the inlet connections?
Asked by: Brent
Thank you for your question. The R10000-MF has 1/2" PEX cold expansion connections and 1/2" universal outlets with male threads. The R10000-PXWS has 1/2" PEX Crimp connections and 1/2" universal outlets with male threads. Best regards, Edward
Answered by: DeltaFaucet234
Date published: 2017-10-08

R10000-MFWS

What does the Pex Cold Expansion represent in this code and what would be the benefit of using this valve vs. the R10000-UNWS?
Asked by: Rep.
Hi Rep, Thank you for your question! The R10000-UNWS has 1/2" inlets for copper or iron pipe and would need an adapter to use PEX with with it. The R10000-MFWS is manufactured to be used with PEX. Best regards, Brandis
Answered by: DeltaFaucet7
Date published: 2016-02-11

What is the flow rate of the R10000-MFWS as compared to the R10000-UNWSHF?

Asked by: fred
Hi Fred, Thank you for your question! Here is the flow rate comparison information.Regular R10000 (60PSI ) (80PSI) R10000-HF(60PSI) (80PSI) 13/14 6.3gpm 7.3gpm 7.3gpm 8.6gpm 17 5.6 gpm 6.4gpm 6.7gpm 7.8gpm 17T 7.0 gpm 8.0gpm 9.4gpm 10.7gpm Best regards, Brandis
Answered by: DeltaFaucet7
Date published: 2017-12-10
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