Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your hansgrohe ShowerSelect S thermostatic mixer, designed for controlling two water outlets. This product ensures a consistent water temperature and allows for easy selection between different shower functions.

Image: The hansgrohe ShowerSelect S thermostatic mixer in chrome finish, showing its compact design and control elements.
Safety Information
- Installation must be performed by a qualified professional to ensure proper function and compliance with local plumbing codes.
- Ensure the water supply is turned off before beginning any installation or maintenance work.
- The thermostat includes a safety lock at 40°C (104°F) to prevent accidental scalding. This limit can be adjusted by a professional if necessary.
- This product is suitable for high-pressure water systems only.
- If a pump is used, it must be a universal negative head pump.
Package Contents
The package for the hansgrohe ShowerSelect S thermostatic mixer typically includes the following components:
- Handle
- Sleeve
- Rosette
- Function block
- Buttons for outlet selection
Note: A hansgrohe iBox universal base set (B0017VDYGI) is required for flush-mounted installation and is sold separately.
Setup and Installation
The hansgrohe ShowerSelect S thermostatic mixer is designed for flush-mounted installation. It requires the prior installation of a hansgrohe iBox universal base set. Refer to the iBox installation manual for specific instructions on preparing the rough-in.
Installation Diagram

Image: Technical drawing illustrating the dimensions and installation requirements for the hansgrohe ShowerSelect S thermostatic mixer. Key dimensions include a total height of 150mm, a visible height of 106mm, a diameter of 44mm for the control unit, and an adjustable installation depth between 54-82mm.
Once the iBox is installed and the wall is finished, proceed with mounting the function block, rosette, and handle according to the detailed instructions provided with the iBox and the mixer itself. Ensure all connections are secure and watertight.
Operation
Temperature Control
The thermostatic mixer allows you to set and maintain a desired water temperature. Rotate the main handle to adjust the temperature. The safety lock at 40°C (104°F) prevents the temperature from being accidentally set too high. To exceed this temperature, a button on the handle must be pressed while rotating past the safety stop.
Outlet Selection (hansgrohe Select)
This mixer is designed for two outlets. To switch between the outlets, simply press the corresponding Select button. Pressing the button will activate or deactivate the specific outlet. This allows for intuitive control, even with soapy hands.
Maintenance
To maintain the appearance and functionality of your hansgrohe ShowerSelect S mixer, follow these guidelines:
- Clean the chrome surfaces regularly with a soft cloth and a mild, non-abrasive cleaner.
- Avoid using cleaners containing acids, chlorine, or abrasive particles, as these can damage the finish.
- Rinse thoroughly with clean water after cleaning and dry with a soft cloth to prevent water spots.
Troubleshooting
If you experience issues with your thermostatic mixer, consider the following:
- Inconsistent Water Temperature: Check the hot and cold water supply lines for adequate pressure. Ensure the thermostatic cartridge is not obstructed by debris.
- Low Flow Rate: Verify that the main water supply is fully open. Check for any blockages in the water lines or the mixer itself.
- Difficulty Switching Outlets: Ensure the Select buttons are not obstructed and are operating freely.
For complex issues or if troubleshooting steps do not resolve the problem, it is recommended to contact a qualified plumber or hansgrohe customer support.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | hansgrohe |
| Model Number | 15743000 |
| Mounting Type | Deck Mount (Flush-mounted with iBox) |
| Finish Type | Chrome |
| Material | Brass |
| Number of Handles | 1 |
| Hole Count | 1 |
| Special Feature | hansgrohe Select |
| Maximum Flow Rate | 26 Liters Per Minute |
| Maximum Pressure | 10 Bars |
| Product Dimensions | 2.13"D x 5.91"W x 5.91"H |
| Item Weight | 2.63 pounds (1.2 Kilograms) |
Warranty Information
The hansgrohe ShowerSelect S thermostatic mixer comes with a 5-year limited warranty, reflecting the premium quality and craftsmanship of the product. For specific terms and conditions of the warranty, please refer to the documentation included with your purchase or visit the official hansgrohe website.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact hansgrohe customer service. Contact information can typically be found on the hansgrohe official website or in the product packaging.





