Introduction
This manual provides essential information for the installation, operation, and maintenance of your GROHE Allure Brilliant Custom Shower Thermostatic Trim with Control Module, Model 19795000. Designed for precision and durability, this thermostatic trim ensures a consistent and enjoyable showering experience.
The GROHE Allure Brilliant series features crisp planes, intriguing angles, and cut-out details, reflecting a commitment to precision and innovation. It incorporates GROHE SilkMove technology for smooth operation and GROHE StarLight finish for lasting beauty.

Image: GROHE Allure Brilliant Custom Shower Thermostatic Trim with Control Module.
This image displays the GROHE Allure Brilliant Custom Shower Thermostatic Trim, highlighting its distinctive design and Starlight Chrome finish. The trim is a key component for controlling water temperature and flow in a custom shower setup.
Setup and Installation
Proper installation is crucial for the optimal performance of your GROHE Allure Brilliant Thermostatic Trim. It is recommended that installation be performed by a qualified professional.
- Rough-In Box Requirement: This thermostatic trim requires the separate purchase and installation of a GrohFlex Universal Rough-In Box (Model 35 026). Ensure this component is correctly installed according to its own instructions before proceeding with the trim installation.
- Water Supply: Ensure that both hot and cold water supply lines are properly connected and flushed before connecting to the thermostatic trim.
- Volume Controls: This system requires separate volume controls for each shower outlet. These controls must be installed independently to manage water flow to different shower functions (e.g., showerhead, hand shower, body sprays).
- Leak Testing: After installation, thoroughly check all connections for leaks before sealing walls or covering access points.
Operating Instructions
The GROHE Allure Brilliant Thermostatic Trim is designed for intuitive control of your shower temperature. Volume control for individual shower outlets is managed by separate controls.
- Temperature Control: Use the main thermostatic handle to set your desired water temperature. The GROHE TurboStat technology will quickly reach and maintain this temperature, even with fluctuations in water pressure.
- Safety Stop: The thermostatic handle typically includes a safety stop at 100°F (38°C) to prevent accidental scalding. To exceed this temperature, press the override button on the handle while turning.
- Water Flow (Volume): Adjust the water flow to each shower outlet using the dedicated volume control handles installed separately. Turn the handle to increase or decrease the flow.
- Shut-off: To turn off the water, rotate the volume control handles to the closed position. The thermostatic trim will maintain your last temperature setting for the next use.
Maintenance and Care
To ensure the longevity and pristine appearance of your GROHE Allure Brilliant Thermostatic Trim, follow these care guidelines:
- Cleaning the Finish: The GROHE StarLight chrome finish is designed to be scratch and tarnish-resistant. Clean regularly with a soft cloth and a mild, non-abrasive cleaning agent. Avoid using harsh chemicals, abrasive cleaners, or scouring pads, as these can damage the finish.
- Water Spots: To prevent water spots, wipe the trim dry after each use.
- Thermostatic Cartridge: In areas with hard water, mineral deposits can affect the performance of the thermostatic cartridge over time. If you notice inconsistent temperature control, consult a qualified plumber for inspection and potential descaling or replacement of the cartridge.
Troubleshooting
If you encounter issues with your GROHE Allure Brilliant Thermostatic Trim, consider the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inconsistent Water Temperature | Fluctuations in hot/cold water supply pressure; mineral buildup in thermostatic cartridge. | Check household water pressure. If problem persists, contact a plumber to inspect or descale the thermostatic cartridge. |
| Low Water Flow | Partially closed volume control; debris in water lines or showerhead. | Ensure volume controls are fully open. Clean showerhead or aerator. Check for kinks in supply lines. |
| Water Not Hot Enough (or too hot) | Thermostatic cartridge calibration issue; hot water heater setting. | Verify hot water heater settings. If temperature remains incorrect, the thermostatic cartridge may need recalibration or replacement by a professional. |
If these steps do not resolve the issue, please contact GROHE customer support or a qualified plumber.
Specifications
Key technical specifications for the GROHE Allure Brilliant Custom Shower Thermostatic Trim (Model 19795000):
- Model Number: 19795000
- Brand: GROHE
- Color: StarLight Chrome
- Material: Metal, Brass
- Finish Type: Chrome
- Number of Handles: 1 (for temperature control, separate volume controls required)
- Item Weight: 4.65 Pounds
- Product Dimensions: 6.75 x 5 x 7 inches
- Mounting Type: Wall Mount
- Flow Rate: 14 Gallons Per Minute (at 45 psi)
- Required Rough-In Box: GrohFlex Universal Rough-In Box (35 026)
Warranty and Support
For detailed warranty information and customer support, please refer to the official GROHE website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
GROHE Official Website: www.grohe.com





