Grohe thermostatic 1/2" cartridge assembly (47450 000)

Grohe thermostatic 1/2" cartridge assembly (47450 000) - main image 1


£126.50 (£105.42 ex. VAT) + P&P Lowest Price Guarantee
In Stock RRP £192.71
  • Product Description:

    Grohe thermostatic 1/2" cartridge assembly.

    Cartridge Length: 86.7mm
    Diameter at widest point: 31.8mm

    The Grohe thermostatic 1/2" cartridge assembly (47450 000) is a genuine, brand new Grohe product, covered by a minimum 1 year Grohe manufacturer's guarantee.

    Available for same day despatch if ordered before 3:30pm Monday-Friday (otherwise despatching will be on the next working day). For the delivery options available for this product, please add it to your Basket or see our delivery options page.

    Not what you're looking for? See all Grohe Shower Cartridges or try our unique Shower Spares Finder.

    For advice on this or any product, please call 01452 619836, email us at, or see our contact page.

    Product Specifications:

  • The Grohe thermostatic 1/2" cartridge assembly (47450 000) will fit the following 22 products.

    List(s) are sorted by product type and then alphabetically.

    Hover overTap any icon below to see a preview of that model.

    May fit other products.

    If you are unsure of your product model, or would like more information, please contact us.

  • A selection of the latest reviews for the Grohe thermostatic 1/2" cartridge assembly (47450 000) can be read below:

    • Very helpful advice ensuring that the thermostatic cartridge selected was the correct one for my shower. Delivered the following morning and installed a day later. Performs perfectly.


    • Great service from national shower spares. The replacement thermostatic cartridge worked like a dream!

      Mubashir Mirza

    • came the next day and was simple to remove the original thermostatic valve and fit the replacement,

      David Pitts

    • Genuine and as advertised - working fine.


    • Very expensive but seems to be working well.

      Michael Hammond

    • I asked about the part and was advised that I may need to change a pair of non return valve / filters, I decided to order all three parts to make sure that I had covered everything, parts were delivered next day and fitted, now everything works well again.
      Will definitely use National Shower Spares again.

      James Pigott

    • Good service and price

      George Hill

    • Works Perfect

      Bruce Masson

    • Support on the phone was brilliant, the chap I spoke to was extremely knowledgeable and pointed me to a weblink to get the technical drawing support. A few simple checks and I ordered the correct Grohe part, it arrived in 2 days and worked perfectly. A fixed shower which the family love. Will use again when required, don’t go anywhere else, this company is the real deal.👍

      Nick Turner

    • Top class service

      Catherine Eberlin

    • Simple replacement!

      Philip Parker

    • Part fitted and the shower is now working as it should be without the issue of being too hot. Great!

      Steve Violet

    • Great service thanks again. shower now back to normal working 100%.

      Graham Brown

    • very good

      Robert Griggs

    • Replacement fixed our problem. Showerspares presales support and delivery superb

      Duncan Bradley

    • The exact part I needed to fix a customer's shower.
      I received it within a couple of days.
      Good product, great service.

      Thomas Rice

  • Do you have a question about the Grohe thermostatic 1/2" cartridge assembly (47450 000)?

    Click the button below to send a question to one of our expert members of staff and we will email you back a direct response. If we feel the information might be useful to other customers, we will also show your question below for others to see.

    Ask a Question

    • I have a grotherm 1000 34624. it has suddenly started only running cold and not at all if the hot is fully on. Would this be a problem with the thermostatic valve ( 47450 )?

      Hello, you need to check the inlets for blockage first, then if you do not find any blockage, you can replace the 47450, but no flow at all, would suggest a blocked inlet/non return valve.

    • is it possible that a new replacement cartridge is faulty, only we have had two new ones and it has not solved the problem. We have just
      had our boiler checked and every thing is running perfect, also cleaned filters and replaced valve in shower it is mixer shower over a bath we have very hot water in the bath tap, but only warmish water at the shower, we have tried every thing running out of ideas hope you can help.

      Hello, are you re-calibrating the temperature after fitting the new cartridge?, by adjusting the black hub?

    • Hi
      I have a megaflo system and sometimes my hot tap in the kitchen runs cold. I have checked everything possible, but, could it be a faulty thermostatic valve in my Grohe Automatic 2000 shower. Its about 15yrs old, and now just needs VERY small adjustments to change temperature.
      Many thanks

      Hello, it sounds like you may be getting cross-flow through the shower, which means the non return valves are stuck open, they can be removed, cleaned and replaced,they are either side of the temp cartridge 47450.

    • My Grohe Automatic 2000 34310 doe not turn of the water without a lot of force on the knob. What might solve this please?
      Rgds Ray

      Hello if your on/off valve is screw-down, ie it turns more than 1/2 a turn, then you need part number 06905

    • The diverter in my up to now excellent Grohe bath shower mixer, which has a shower symbol on the top, is only diverting approximately 50% of the water to the shower. Is it something that can be fixed without buying a new shower mixer? Is the necessary part(s) still available? I can attach photos to identify model no. It is definitely Grohe, and approx 16 years old.

      Hello, please can you send a photo so we can be sure of getting the right parts first time.

    • Hi,
      I am looking for shower catridge Grohe 1/2" Thermostatic Shower Cartridge - 47450 000. I don't know the number of control catridge for controling water.Can you please find out the other catridge for me and let me know the price of complete set.

      Hello, this cartridge is used in many other showers, we need to know which shower you have. Can you e-mail a photo to us

    • We have recently had fluctuating temperatures on two Grohe showers installed about 9/10 years ago. Plumber inspected them today and confirmed that we need new cartridges........... but we can't find the exact code numbers or details of the shower control units and I long ago mislaid the paperwork. Might you be able to identify if I sent photos?

      Hello, yes, please send us a photo of the trimset and if poss of the cartridge.

    • I have a Grohtherm 3000 about 10 years old now but recently it has been fluctuating water temperature whilst in the shower. I replaced the thermo cartridge but no improvement. I am still experiencing fluctuations in water temperature, not massive but enough to make it uncomfortable while in the shower. Can you suggest any other corrective action please or replacement of existing part ?

      Hello, is the shower on a combi boiler?, if it is it may be the boiler 'cycling' a blocked shower head can cause this or partially blocked inlet filters. we hope this helps

    • My Grohe 47450 came with a small sachet of what looks like silcon or grease. what is this for?

      Hello, please smear the grease on the O rings and any threads.

    • Our Grohetherm 3000 - 19663 recessed bathmixer will only produce luke warm water. The sink tap next to the bath has hot water. Is the thermostatic valve inside broken?

      Hello, yes the thermostatic cartridge will need to be replaced

    • Hi,
      We have a Grohe Sentosa oval shaped shower which is concealed behind the tiles so we can't get at the product code. Is the Grohe 47450 the right valve as the shower is permanently far too hot even when the dial is turned to the cold setting.

      Hello, if it is just a shower (not a bath/shower) then yes, the 47450 is the correct part

    • My Grohe Automatic 2000 Shower valve has become unstable controlling the temperature will 47450 fix it? The valve is more than 10 years old!

      Hello, if the shower is running very hot or stuck on just one temperature, then the 47450 will cure the fault, if however the shower is cycling hot-cold-hot, then you may have a problem with the hot water supply, is it on a combi? are the inlet filters blocked? is the shower head a bit blocked up?, both of these can cause a combi to cycle.

    • Hi, my Grohe Thermostatic shower valve has faulty temperature control, it will only run very hot, will the 47450 cure such a fault??

      Yes, the Grohe 47450 temperature cartridge will fix this fault