-hidden-zone- Shower- Hz Sh 902 - 1089 -188 Vids- -

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Conclusion

Standardized Heights:

The "188" likely refers to a 1880mm height (approximately 74 inches). This is a standard height that prevents water splash-over while fitting comfortably under most bathroom ceilings.

If you want a 902 Hz tone mixed with shower sounds:

Support Bars:

For glass panels at the 1880mm height, always use the included overhead support bar to prevent the glass from flexing.

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If you can provide the or the store where it was purchased , I can try to track down the correct installation or troubleshooting documentation for you.

While "hz sh 902" may refer to a specific manufacturer’s model number, concealed systems generally include: Concealed Thermostatic Valve