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Buttons to Suit Geberit Sigma 8 Cistern
22 products
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Original price $199Current price $189Geberit Sigma 20 Dual Flush Plate Matte White
ABS Plastic construction Quality matte white plate for a sleek, modern look and monochromatic palettes with bold statements Fingerprint resistan...
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Original price $199Current price $189Geberit Sigma 20 Dual Flush Plate Matte Black
ABS Plastic construction Quality matte black plate for a sleek, modern look and monochromatic palettes with bold statements Fingerprint resistan...
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Original price $166Current price $129Geberit Sigma 30 Dual Flush Plate Matte Black
ABS Plastic construction Quality matte black finish Fingerprint resistant matte finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerlan...
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Original price $199Current price $189Geberit Sigma 20 Matte Plate with Chrome Trim
ABS Plastic construction Quality matte chrome finish Fingerprint resistant Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Descrip...
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Original price $278Current price $264Geberit Sigma 20 Dual Flush Plate White with Gold Trim
ABS Plastic construction White/gold plated/white finish Geberit quality Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Descriptio...
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Original price $166Current price $145Geberit Sigma20 Square Dual Flush Plate White/Gold
ABS Plastic construction Quality white/gold finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures un...
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Original price $146Current price $127Geberit Sigma20 Square Dual Flush Plate White
ABS Plastic construction Quality white finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures unobtru...
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Original price $199Current price $189Geberit Sigma 20 Chrome Plate with Matt Trim
ABS Plastic construction Quality chrome finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures unobt...
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Original price $166Current price $158Geberit Sigma20 Square Dual Flush Plate Bright Chrome
ABS Plastic construction Bright Chrome finish Geberit quality Description Geberit ensures unobtrusive yet reliable function, supreme conven...
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$383Geberit Sigma 20 Dual Flush Plate Stainless Steel/Chrome
Stainless steel construction Stainless Steel/Chrome finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit en...
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Original price $166Current price $138Geberit Sigma 30 Dual Flush Plate Matte White
ABS Plastic construction Quality matte white finish Fingerprint resistant matte finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerlan...
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Original price $199Current price $182Geberit Sigma 20 Dual Flush Plate Gloss White
ABS Plastic construction Quality bright white plate for a sleek, modern look and monochromatic palettes with bold statements Suits Geberit Sigma...
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Original price $166Current price $149Geberit Sigma20 Square Actuator Dual Flush Plate Matte Chrome
Geberit ensures unobtrusive yet reliable function, supreme convenience, and durability all from behind the wall. The only visible element of the s...
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Original price $560Current price $487Geberit Sigma 60 Glass Dual Flush Plate White
Stainless steel construction Luxe white glass finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures...
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$199Geberit Sigma 20 Dual Flush Plate Black/Chrome
ABS Plastic construction Quality black plate with chrome finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geber...
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$166Geberit Sigma 20 Flush Plate White with Chrome Trim
ABS Plastic construction White/bright chrome/white finish European quality brands Suited to Geberit cisterns only ...
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Original price $560Current price $532Geberit Sigma 60 Glass Dual Flush Plate Black
Stainless steel construction Luxe glass black finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures...
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Original price $166Current price $149Geberit Sigma 30 Dual Flush Plate Gloss White
ABS Plastic construction Quality white finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures unobtru...
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$146Geberit Sigma20 Square Dual Flush Plate Black
Quality black finish with chrome trim Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit ensures unobtrusive yet...
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$560Geberit Sigma 60 Dual Flush Plate Brushed Chrome
Stainless steel construction Quality brushed chrome finish Suits Geberit Sigma 8 cisterns Manufactured in Switzerland Description Geberit en...
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Original price $423Current price $402Geberit Kappa 50 Dual Flush Plate Satin Chrome
Stainless steel construction Satin Chrome finish Geberit quality Pairs with the Geberit Kappa Under Counter 150 Concealed Cistern Description...
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Buttons to suit Geberit Sigma 8 cistern, matched for a correct fit
Buttons to suit the Geberit Sigma 8 cistern are flush plates and dual flush buttons made specifically to fit the Sigma 8 concealed cistern mechanism, so the plate clicks into place and operates the flush properly rather than sitting loose or failing to trigger the valve. Because concealed cisterns are hidden behind the wall, the button is the only visible part, and getting the exact model right is essential for both fit and function.
Geberit has released several generations of concealed cistern, and the fixing points and flush mechanism differ between them, so a button designed for a different Geberit model, even a similar looking one, will not necessarily work on a Sigma 8 unit.
Why matching the exact cistern model matters
- Mechanical fit: the button connects directly to the flush valve inside the cistern, so the clips, spacing and actuation points need to match the Sigma 8 mechanism exactly for the flush to work reliably.
- Dual flush function: Sigma 8 cisterns are generally set up for dual flush, so the replacement button needs to support both the full and half flush actions rather than only a single flush.
- Panel size and cutout: flush plates are made to a specific size and shape to suit the access panel cut into the wall or cabinetry, so a mismatched plate may not cover the opening properly.
- Finish consistency: if you are replacing a damaged or dated button, matching the finish to your other bathroom fittings, such as chrome, matte black or white, keeps the toilet area looking consistent.
Common reasons to replace a flush button
Flush buttons are typically replaced when the existing button has cracked, discoloured or stopped actuating the flush reliably, or as part of a bathroom refresh where the rest of the fittings are being updated. Because the Sigma 8 cistern itself sits behind the wall, replacing just the button is usually far simpler than any other part of a concealed cistern system.
How to check you have the right model
Before ordering, confirm the cistern behind your wall is a Sigma 8 unit rather than an earlier Sigma or UP series cistern, as these use different button fittings. If you are unsure, the existing button or the original installation documentation can usually confirm the cistern generation, and a plumber can check the mechanism directly if needed.
Installation notes
Fitting a new button is generally a straightforward job of removing the old plate and clipping the new one into the existing frame, though the water supply to the cistern should be isolated first. If you are not confident working around the cistern mechanism, it is worth having a licensed plumber complete the swap to make sure the flush operates correctly afterwards.
What sits behind the button
The Sigma 8 cistern itself is concealed within the wall cavity or furniture unit, with only the actuator plate and button visible in the finished bathroom. This means the button carries more visual weight than a standard exposed cistern lid, since it is the one piece of hardware on show every time the toilet is used. Choosing a button that suits the rest of the room, in a finish that lines up with your tapware or other toilet suite fittings, is a simple way to keep a concealed cistern setup looking deliberate rather than purely functional.
Because the button is also the only interaction point with the flush mechanism, a worn or poorly matched button can be more than a cosmetic issue. If the actuation points do not line up correctly with the Sigma 8 valve, the flush may become inconsistent or require extra pressure to trigger, which is another reason to confirm compatibility before purchasing rather than after installation.
Frequently Asked Questions
How do I know if my cistern is a Geberit Sigma 8?
The safest way is to check the original installation paperwork or look at the existing flush button, as Geberit's Sigma and UP series cisterns use different fittings across generations. If you are unsure, a plumber can identify the cistern generation by inspecting the mechanism behind the access panel.
Can I use a button from a different Geberit cistern on a Sigma 8?
Not reliably. Even similar looking Geberit buttons are made to fit specific cistern generations, so a button designed for an earlier Sigma or UP series unit may not clip in correctly or actuate the flush valve on a Sigma 8. Always match the button to the exact cistern model to avoid fit and function issues.
Why does my Geberit Sigma 8 button need to support dual flush?
Sigma 8 cisterns are generally configured for dual flush, offering a full and a half flush option, so the button needs to operate both actions correctly. A single flush button will not give you the water saving benefit of the half flush setting.
Is replacing a Geberit Sigma 8 flush button a DIY job?
Replacing the button itself is usually straightforward once the water supply is isolated, involving removing the old plate and clipping in the new one. If you are not confident working around the cistern mechanism, a licensed plumber can complete the swap and confirm the flush is operating correctly.
What finishes are available for Geberit Sigma 8 flush buttons?
Flush buttons to suit the Sigma 8 cistern come in a range of finishes, including chrome, matte black and white, so you can match the button to the rest of your bathroom fittings. This is particularly useful when replacing a dated button as part of a broader bathroom refresh.
