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Rough-In Valves > GRH3894

Grohsafe Universal Pressure Balance Rough-in Valve



(View all from Grohe)
SKU #: GRH3894
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Product Details
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About the Brand

Grohe Grohsafe Universal Pressure Balance Rough-in Valve


  • Includes cap and plug for 3 port installation
  • Universal pressure balance rough-in valve
  • Handle limit stop
  • Diaphragm cartridge
  • Check valves
  • Built-in by-pass
  • Service stops
  • Universal connection is male by copper sweat
  • Flow rate: (top port) 5.5 gpm at 45 psi (21 L/min (bottom port) 5.8 gpm at 45 psi (22 L/min)
  • Code compliance: ASME/ANSI A112.18.1M
  • Code compliance: ASSE Standard 1016
  • Code compliance: CSA Standard B125.1-05
  • Rough brass finish
  • Grohsafe collection

Grohe Grohsafe Universal Pressure Balance Rough-in Valve

Weights & Dimensions

  • Overall: 4.44" H x 5.94" W


Product Type: Thermostatic valve; Pressure-balancing valve; Volume control valveValve Application: Shower valve
Mount Type: WallPrimary Material: Metal
Number of Items Included: 1Connection Type: CC
Country of Manufacture: Germany 

Questions & Answers (1)


“Hello, is this item compatible with just a shower or a shower/tub combo?” asked by Barb

"Hi Barb, this item is compatible with just a shower or a shower / tub combo." Shannon from Wayfair

Still have questions about this product? We're here to help

Grohe Grohsafe Universal Pressure Balance Rough-in Valve

When you buy a Grohe Grohsafe Universal Pressure Balance Rough-in Valve online from AllModern, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Grohe Part #: 35015000 here. If you have any questions about your purchase or any other Rough-In Valves product for sale our customer service representatives are available to help.Whether you just want to buy a Grohe Grohsafe Universal Pressure Balance Rough-in Valve or shop for your entire home, AllModern has all of your design needs covered.

About the Manufacturer

Grohe Facts:
  • GROHE is the largest faucet importer in the U.S.
  • GROHE is the market leader in Germany.
  • GROHE is the market leader in Europe.
  • GROHE is one of the three largest faucet manufacturers in the world.
  • GROHE is the largest exporter of faucets in the world, shipping to over 180 countries.
  • GROHE is the largest manufacturer of thermostatic temperature control valves in the world.
  • GROHE was the first international faucet manufacturer to be ISO 9001 Quality Assurance Certified. Due to its size and structure as an international exporter, GROHE has been able to avoid erratic price increases due to weakness of the U.S. Dollar in relationship to other currencies

GROHE Firsts

  • GROHE was the first to successfully launch the pull-out spray kitchen faucet.
  • GROHE´s Ladylux created an entire new product category for the industry.
  • GROHE was the first faucet manufacturer to introduce a kitchen pull-out faucet with a solid stainless steel body.
  • GROHE was the first GERMAN faucet manufacturer to establish a wholly owned subsidiary in the U.S.
  • GROHE created the European high-end faucet category in the U.S.
  • GROHE introduced the European-style single-hole faucet installation to the U.S.
  • GROHE has made a tangible long term commitment to the American market with the construction of a wholly-owned/ built-to-suit U.S. headquarters facility in Bloomingdale, IL, completed in 1993.
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Customer Reviews
Average Overall Rating
(based on 45 reviews)

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Plumber says this is made solid

from Alhambra, CA – Verified Buyer

I still don't quite understand what this product does but my plumber assured me that Grohe makes a solid valve. It looks very beefy but I won't get to see much of it once the tile closed up the wall.

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rough in value

from Charlotte, NC – Verified Buyer

This is exactly what was needed on my bathroom project. It appears that when buying the Grohe line, you may need to pick up individual parts of the system. It was easy for our contractor to install.

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from Seattle, WA – Verified Buyer

Not much I can say about this. Our contractor installed it and it seems to be doing what it's suppose to. Arrived quickly with the Grohe shower kit we also ordered.

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Can't go wrong with Grohe Products

from Cameron Park, CA – Verified Buyer

Was a replacement for an old Rough in valve during a bathroom remodel. Was a great price compared to other online plumbing supply stores. none

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Rough in

from Chicago, IL – Verified Buyer

THis product seems to be made well. Needed for new bathroom rough-in if used with Grohe tub/shower faucets.

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long lasting valve, great lead time

from chicago, IL – Verified Buyer

The valve was purchased and shipped in less than a week. The valve is solid and allows the plumber some flexibility in rough in location and finish dimensions.

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Great product that matches the description!

from Fairfax, VA – Verified Buyer

Our plumber used this to install our new Grohe shower faucet. Don't believe he had any trouble installing and we have had no issues with the faucet at all.

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from Houston, TX – Verified Buyer

needed this valve last minute and got it quick! Simple and easy!

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Grohe valve... quality!

from Saddle River, NJ – Verified Buyer

It works good and it perfectly controls the water temperature and pressure.

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No Complaints

from Fort Lauderdale, FL – Verified Buyer

It seems to pretty effective, but I am not an expert on reviewing valves.

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Grohsafe Universal Pressure Balance Rough-in Valve is also sometimes listed under the following manufacturer numbers: 35015000