Product Brochure

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GROHE Whisper®

Thanks to decoupled pipe supports, sound isn’t

transferred to the structure of the building when

the water is released from the cistern to the bowl,

allowing for convenient toilet positioning without

fear of disturbing others.

Maximum Noise Control For Quietest Operation

Since the Rapid SL is a concealed system, noise is considerably

decreased in comparison to a traditional toilet. In addition,

GROHE Whisper® technology provides low-noise ﬁttings and

the pneumatic actuator further reduces noise.

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Normal Conversation

Rapid SL On-The-Wall

21 dB(A)

Rapid SL

Studded Wall

14 dB(A)

Pain Threshold

Jet Taking Off

Highest Possible

Noise Level

Lowest

Perceptable

Sound

Quiet Bedroom

Noise Level

dB(A)

Range of

Plasma Cutting

Welding,

Short Arc

Heavy

Grinding