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Matki SB1222 Thermostatic Cartridge
Matki SB1222 Thermostatic CartridgeMatki SB1222 Thermostatic Cartridge for Swadling Invincible 3/4 Inch Thermostatic Mixer ValveMatki Swadling Vernet Brass Thermostatic CartridgeMatki SB1222Matki SB1222 CartridgeMatki Thermo Cartridge

Matki SB1222 Thermostatic Cartridge for Swadling Invincible 3/4" Thermostatic Mixer Valve

Part Number: MATKI-SB1222
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SALE: £151.83

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Unfortunately, this specific item is now discontinued and can no longer be purchased from Di Vapor. See the description below for alternatives or scroll down this page and see the associated 'Other items'.
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Product description


Matki SB1401 Thermostatic Cartridge for Swadling Invincible 3/4 Inch Thermostatic Mixer Valve.

This cartridge was made by Vernet in the early 1990's and the original brass version has since been discontinued. The brass version has now been replaced with the most reliable and better performing polymer version, which can be seen in image 4.

Frequent Questions
Q. My temperature is locked at one, very hot, temperature – is this part of the problem?
A. It’s hard to say, because unless your cold pipe has a blockage then the problem is almost certainly the thermostatic cartridge within the shower. With a seized cartridge, the hot and cold mixing cannot take place and a replacement should be sought out.

Q. My control handle knob appears to be leaking. How likely is it that my thermostatic cartridge has gone?
A. It’s likely that the problem will be the cartridge, yes. This can happen as the leak is coming from the primary area – the other only likely option is that the valve has deteriorated badly and needs to be replaced. Other than that, then you could investigate the hot and cold valves to ensure that they are in fine working order.
shipping & Returns


  • Delivery of this item is priced as a 'small' packet. UK delivery costs £5.95.
  • For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
  • If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.30pm, Monday - Friday.
  • Next day delivery is available to select at an additional charge during the checkout.
  • We delivery WORLDWIDE. For more information about international deliveries, read our delivery page.


  • If you need to return a part then please telephone Di Vapor on 0121 705 0866 with the reasons for the return within 14 days of receiving the goods.
  • For more information please see our terms and conditions.
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