Copy and paste “grohe 41131275” into your search engine.

I did and came up with dozens of cartridges that look to match the one in your picture. One example is Here. The exact part numbers may not match, however often the manufacturer will change a part number to reflect the year and month of manufacture.

You will have to do your own comparison shopping. Or take the cartridge to a plumbing supply store and they will match it up.

Answer from RMDman on Stack Exchange
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Plumbing 101
plumbing101.i234.me › home › showers & tubs › identify & fix your old grohe shower valve
Identify & Fix Your Old GROHE Shower Valve - Plumbing 101
October 13, 2025 - ... Photograph the trim and handle backside. Remove the cap and set screw, slide off the handle, and snap photos of the stem and retaining hardware. Look for numbers on the cartridge hub or bonnet. GROHE often stamps the part number on the cartridge body once the trim is off.
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Faucetshark
faucetshark.com › Grohe-Repair-Parts-Guide-s › 6621.htm
Grohe Repair Parts Guide
Find Grohe thermostatic shower parts breakdowns and part identification by valve model · See More › · Grohe Volume Control Parts · See More › · Grohe Diverter Valve Parts · See More › · Grohe Centerset Lavatory Faucet Parts · See More › · Grohe Wideset Lavatory Parts ·
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JustAnswer
justanswer.com › plumbing › 9jawi-older-grohe-shower-valve-thermostatic-mixer.html
Expert Solutions for Older Grohe Shower Valve Thermostatic Mixer Issues
The continuous trim rotation indicates a worn or broken retaining clip or calibration ring inside the thermostatic cartridge. To restore hot water, remove the trim and inspect the grey plastic calibration ring for damage or misalignment.
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The Shower Doctor
showerdoc.com › identify-my-shower
Identify my Shower or Cartridge | The Shower Doctor
A photo of your shower valve will help us identify the make and model in most cases.
Address   Unit 4B Bankhead Crossway, EH11 4EX, Edinburgh
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JustAnswer
justanswer.com › plumbing › ehynz-trying-identify-grohe-shower-valve-so-may.html
Identify Grohe Shower Valve: Expert Help & Troubleshooting Guide
For a Grohe shower valve about 12-15 years old, start by locating hidden screws or clips behind the trim plate to access the cartridge. Difficulty removing trim is common due to corrosion or design.
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Contractor Talk
contractortalk.com › home › forums › trade talk › plumbing
grohe shower valve | Contractor Talk - Professional Construction and Remodeling Forum
... Check the integral stop on the cold side, it may be shut, or only partially open, most Grohe thermostatic valves have integral stops which are quarter turn stops, if the slot is not in line with the valve body it is not open.
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Plumbing Forums
plumbingforums.com › general plumbing discussion › general plumbing help
Thermostatic Valve Trim Identification Help | Plumbing Forums - Professional & DIY Plumbing Forum
October 17, 2019 - Update : The Diverter Valve is MB1951LMSTN , Rohl from the Michael Berman Collection. I refined my search to Shower Trim packages with only 'Hot' Warm' and 'Cold' written on them. This lead me to the diverter valves family. Still working on the 2-Handle Thermostatic Mixing Valve.
Find elsewhere
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Plumbing Zone
plumbingzone.com › home › forums › professional plumbers forum › residential plumbing
Shower valve identification | Plumbing Zone - Professional Plumbers Forum
I recall there being a part that seems like it should be fine to remove with the water on, but it's not. Part of the volume control mechanism that shrouds over the thermostatic cartridge. ... I think it’s this valve by Hansgrohe.
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Hunker
hunker.com › 13417603 › how-to-identify-older-grohe-faucets
How To Identify Older Grohe Faucets - Hunker
March 24, 2022 - Grohe faucets can be identified by the manufacturer name and model number, which is located on the stem, faucet nozzle or sometimes elsewhere on the unit.
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The Chicago Faucet Shoppe
chicagofaucetshoppe.com › Grohe-Shower-and-Safety-Valve-Parts-s › 4829.htm
Grohe Shower Handle & Safety Valve Replacement Parts Online
Take 5% off with CHEER25 now through 1/4 as a holiday thank-you! Orders placed during our closure will be processed starting January 5. We appreciate your understanding · Toggle menu · 773-267-1755 · Wishlist · NEED HELP IDENTIFYING A REPLACEMENT PART OR FAUCET?
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Go Full DIY
gofulldiy.com › grohe-thermostatic-shower-valve-problems
Grohe Thermostatic Shower Valve Problems & Troubleshooting Tips
February 3, 2024 - This informative guide aims to help you troubleshoot and resolve common issues related to Grohe Thermostatic Shower Valves. Professionals are required to repair thermostatic shower valve problems. The problem can, however, be solved by replacing it. Replacing an old Grohe thermostatic shower ...
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Terry Love
terrylove.com › home › forums
Grohe Mixing Valve Identification Help
Need help identifying older Grohe bathtub/shower model · Friday at 11:14 AM · Breplum · Advice and instruction on Pumps, Tanks and Well Water systems, installation, repair and replacement. Post your questions with experts. Threads · 11.5K · Messages · 97.8K ·
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Plumbing Forums
plumbingforums.com › general plumbing discussion › showers & tubs
Old GROHE Shower Valve acting up; rebuild or replace? | Plumbing Forums - Professional & DIY Plumbing Forum
June 23, 2022 - Follow up and CLOSING Comment: GROHE Responded and stated I had trim number is 19705000. They sent me Drawing # 19-705 which is for the exact valve I have. (Turns out it IS a pressure valve.) I sprayed the plastic with food grade pure silicone, tightened all the screws and this baby works like new.
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GROHE
grohe.us › home › rough valve spare parts
Rough Valve Spare Parts
Model: 47175 GROHE Turbostat 1/2" Thermostatic Cartridge GROHE Turbostat 1/2" Thermostatic Cartridge
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Frank Webb Home
frankwebb.com › collections › brand-grohe-general-plumbing-plumbing-valves
GROHE Shower Valves | Frank Webb Home
Explore the collection of GROHE shower valves at Frank Webb Home and find essential components for your bathroom plumbing system. Valves are the hidden part of a shower faucet, installed behind the wall and responsible for regulating the flow and temperature of the water.
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Stack Exchange
diy.stackexchange.com › questions › 205149 › how-to-replace-cartridge-on-grohe-shower-valve
plumbing - How to replace cartridge on Grohe shower valve - Home Improvement Stack Exchange
The tricky part is finding the set screw that holds the handle on the stem. They all have a set screw. Remove the screw and put it in a safe place, I generally use an old prescription bottle.
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GROHE
grohe.us › showers › thermostatic-valves-trims-list
Thermostatic Valves & Trims
Find your perfect product using our Selector Tool · Let’s design a project together to bring your dream bathroom to life
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Engineer Fix
engineerfix.com › how-to-find-parts-for-old-grohe-shower-models
How to Find Parts for Old Grohe Shower Models - Engineer Fix
November 17, 2025 - If identification fails, send a high-resolution photograph of the exposed valve and trim kit to Grohe customer service or a specialized parts supplier, who can often identify older series based on appearance.
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Grohe
faq.grohe.us › portal › app › portlets › results › viewsolution.jsp
How do I calibrate the cartridge on a GROHE thermostatic shower valve? - GROHE Portal
Access the Regulating Cap: Begin by removing the thermostatic handle. This will reveal the regulating cap, which may be black or green, depending on your trim style. If using the 34331or 34397 valves, the cap will either be a white or brass spline. Locate the Regulating Cap: Refer to the drawing below and identify the regulating cap marked "A".