Description
The GEBERIT SIGMA8 is a concealed in-wall cistern for a floor mounted or wall faced pan. It sits inside the wall so only the flush plate shows in the room.
Why GEBERIT
GEBERIT is the reference point for in-wall cisterns. The argument for one is simple: you are about to seal a mechanism inside a wall and then tile over it, and the thing that matters ten years from now is whether a replacement valve is still available. This is a range where they are.
What an in-wall cistern gives you, and what it costs
Hiding the cistern gives you back around 200mm of room depth and removes every surface that a visible cistern gives you to dust. Only the flush plate shows.
The cost is that it has to be planned. The frame and the tank go in before the wall is sheeted, so the wall has to be deep enough to take them — that usually means a stud wall or a wall furred out to suit. Doing this in a finished bathroom means building a false wall in front of the existing one.
Servicing it
The inlet valve and the flush valve are reached through the flush plate opening, so nothing needs opening up to service the cistern later. That is why the plate must stay accessible — do not tile over it, and do not put a shelf or a cabinet across it.
Cistern only, or with a plate
Take the cistern on its own if the plate is being bought separately or already exists. Otherwise choose the plate here in matte white, matte black, chrome, brushed nickel, gun metal, brushed brass or champagne copper.
Matte white and matte black are genuine GEBERIT plates. The metallic finishes are compatible plates built to fit the SIGMA8 — they are the way to match a flush plate to tapware in a finish GEBERIT does not make. The gun metal, brushed brass, brushed nickel and champagne copper plates are stainless steel.
Specifications
- Type — concealed in-wall cistern
- Suits — floor mounted or wall faced pan
- Flush — dual, 4.5L full / 3L half, 3.4L average
- Plate options — cistern only, or matte white, matte black, chrome, brushed nickel, gun metal, brushed brass or champagne copper
- Genuine GEBERIT plates — matte white and matte black
- Compatible plates — chrome, brushed nickel, gun metal, brushed brass, champagne copper
- Warranty — 15 years on the tank and frame, 3 years on the valves
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