Best current price£165.66from OnBuy.com
Shopping.co.uk recommended and popular offers
OnBuy.com£165.66Visit shop Ideal Standard / Armitage Shanks Thermostatic Cartridge For Markwik E960575nu For S7449 Counter Shower Valve21 Old Style 5017830371632
Visit shop1 offer from £165.66
View price history by clicking the chart icon.
The Ideal Standard E960575NU thermostatic cartridge is an essential replacement component designed specifically for maintenance professionals and homeowners looking to restore precise temperature control to their existing Markwik shower valve systems. This genuine spare part is engineered for the S7449 counter valve (old style 21), ensuring reliable operation and safety for brass Markwik installations; however, users should verify their specific valve model number carefully before purchase, as it is not compatible with modern, non-Markwik valve systems.
| Model Part Number | E960575NU |
|---|---|
| Brand | Ideal Standard |
No, this is specifically for the legacy S7449 Markwik 'old style 21' counter valves.
You will typically need a set of wrenches or a socket set and a flat-head screwdriver to remove the handle and securing nut.
Common symptoms include the shower being unable to maintain a constant temperature or becoming stuck on one temperature setting.
Generally, no. The seals are provided by the O-rings on the cartridge body, not the threads.
No, this is a proprietary part designed exclusively for the Ideal Standard Markwik S7449 valve system.
The thermostatic element may be blocked by scale; ensure the valve seat is clean during installation.
Check the valve cavity for residual debris or leftover seals from the previous cartridge; apply a light smear of silicone plumber's grease to the O-rings.
Ensure the cartridge is fully seated and the retaining nut is tightened according to manufacturer specifications to create a proper seal.
To ensure a successful installation, first isolate the water supply to the shower unit to prevent leaks or spray. Use an appropriately sized wrench to remove the handle and the valve cover to access the old cartridge. Carefully extract the old unit and ensure the valve seat is free of debris or lime scale buildup before inserting the new E960575NU cartridge.
Compatibility Note: This part is strictly for Markwik S7449 (old style 21) valves. Always cross-reference your existing valve's model number before installation.
Care: To extend the life of the new cartridge, consider installing isolation valves to make future servicing easier and ensure your water system is filtered if you live in a hard water area, as mineral deposits are the primary cause of cartridge failure.
