The Grohe Grohtherm 800 Bar kit ships in polished chrome as standard. Brushed finishes carry a -BR suffix.

10–35 mm adjustment on Grohe concealed valves — use the shroud packer to hide any tile mismatch.

OEM or aftermarket for Grohe?

For TMV2/TMV3 compliance always fit genuine Grohe cartridges. Aftermarket voids the Grohtherm 800 Bar approval.

How to Replace the Shroud Kit on a Grohe Grohtherm 800 Bar (UK)

Replace the concealing plate and shroud on the Grohe Grohtherm 800 Bar where limescale has locked the temperature handle.

Undo the two handle grub screws (2.5 mm hex on most Grohe models). Lift the shroud off — do not lever, it cracks.

Fit new O-rings between the wall plate and shroud to keep the IP54 rating.

Balance hot and cold to within 0.5 bar. Run the Grohe Grohtherm 800 Bar at max flow for 3 minutes.

Verify max outlet temperature stays below 46 °C per BS EN 1111 by shutting off cold and reading the outlet.

Chrome or brushed?: The Grohe Grohtherm 800 Bar kit ships in polished chrome as standard. Brushed finishes carry a -BR suffix.
Wall plate offset?: 10–35 mm adjustment on Grohe concealed valves — use the shroud packer to hide any tile mismatch.
OEM or aftermarket for Grohe?: For TMV2/TMV3 compliance always fit genuine Grohe cartridges. Aftermarket voids the Grohtherm 800 Bar approval.

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