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GROHE

Cartridges you can still buy in ten years

What they actually do

Basin, kitchen and shower fittings, thermostatic mixers, hand showers and rail sets.

Why the cartridge is the argument

A tap is only as repairable as its valve, and a standard ceramic disc cartridge is a part that outlives the fashion the tap was bought in. That is the quiet reason a fitting from a house like this is still working when a cheaper one has been thrown away.

What to read on the thermostatic models

The stated minimum operating pressure. A thermostatic cartridge below it does not fail safely — it regulates badly, and that figure is what tells you whether your supply can carry the fitting.

Every GROHE product we have reviewed