1. Product Overview
The GROHE Rainshower Smart Control 360 Duo Shower System is designed to provide a customizable showering experience with precise control over water temperature and spray patterns. It features a thermostatic mixer for consistent water temperature and multiple spray options for enhanced comfort.

Image 1.1: The complete GROHE Rainshower Smart Control 360 Duo Shower System, showcasing the overhead shower, hand shower, and control unit.
Key features include:
- Thermostatic Mixer: Ensures a constant and safe water temperature.
- Smart Control Buttons: Intuitive push-button selection for various spray patterns.
- Duo Functionality: Allows simultaneous use of the overhead and hand showers.
- Durable Finish: Scratch-resistant and easy-to-clean chrome surface.
2. Setup and Installation
Installation of the GROHE Rainshower Smart Control 360 Duo Shower System requires careful attention to plumbing connections and wall mounting. It is highly recommended to have this system installed by a qualified professional to ensure proper function and adherence to local plumbing codes.

Image 2.1: Technical diagram illustrating the dimensions and mounting points for the shower system components.
Before installation, ensure you have all necessary components as listed in the product packaging. The system is designed for wall mounting. Refer to the provided technical diagram (Image 2.1) for precise measurements and clearances required for installation.
2.1 Key Installation Considerations:
- Water Supply: Connect to appropriate hot and cold water lines.
- Wall Mounting: Securely fasten the control unit and shower arm to a structurally sound wall.
- Component Assembly: Assemble the overhead shower, hand shower, and hose according to the detailed instructions provided in the full installation guide.
3. Operating Instructions
The GROHE Smart Control system offers intuitive control for a personalized showering experience.

Image 3.1: A hand operating the push-button controls on the GROHE Smart Control unit.
3.1 Temperature Control:
The large rotary knob on the right side of the control unit adjusts the water temperature. Rotate clockwise for warmer water and counter-clockwise for cooler water. The integrated GROHE TurboStat technology ensures that your selected temperature remains constant throughout your shower, preventing sudden fluctuations.
3.2 Spray Selection and Volume Control:
The three push buttons on the control unit allow you to select and activate different spray patterns and control water volume:
- Left Button: Typically controls the overhead shower. Push to activate/deactivate. Rotate to adjust water volume.
- Middle Button: Often controls a specific spray pattern for the overhead shower (e.g., TrioMassage). Push to activate/deactivate. Rotate to adjust water volume.
- Right Button: Controls the hand shower. Push to activate/deactivate. Rotate to adjust water volume.
You can activate multiple spray patterns simultaneously. The system also features a memory function, recalling your last used settings for temperature and volume when reactivated.

Image 3.2: A user enjoying the GROHE Rainshower Smart Control 360 Duo Shower System in a bathroom setting.
4. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your GROHE shower system.
4.1 Cleaning the Surface:
The GROHE StarLight chrome finish is designed to be scratch-resistant and easy to clean. To maintain its luster, wipe the surfaces regularly with a soft, damp cloth. For more thorough cleaning, use a mild soap solution or a non-abrasive cleaner specifically designed for chrome fixtures. Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
Caution:
- Do not use abrasive sponges, scouring agents, or cleaners containing alcohol, hydrochloric acid, formic acid, acetic acid, or phosphoric acid, as these can damage the finish.
- Avoid mixing different cleaning agents.
4.2 Cleaning Shower Nozzles:
Over time, mineral deposits can accumulate in the shower nozzles, potentially affecting spray performance. GROHE's SpeedClean anti-lime system allows for easy removal of lime scale. Simply wipe the silicone nozzles with your finger or a cloth to dislodge deposits.
5. Troubleshooting
If you encounter any issues with your shower system, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inconsistent Water Temperature | Thermostatic mixer not calibrated or external water pressure fluctuations. | Ensure the thermostatic mixer is correctly set. Check for stable hot and cold water supply pressure. If issues persist, professional recalibration may be required. |
| Reduced Water Flow | Clogged shower nozzles or low water pressure from the main supply. | Clean the SpeedClean nozzles on the showerheads. Verify adequate water pressure to your home. |
| Water Leaks | Loose connections or damaged seals. | Check all connections for tightness. If seals are damaged, contact GROHE customer support for replacement parts or professional service. |
If the problem persists after attempting these solutions, please contact GROHE customer support or a qualified plumber.
6. Specifications
Detailed technical specifications for the GROHE Rainshower Smart Control 360 Duo Shower System, model 26443000:
| Attribute | Value |
|---|---|
| Brand | GROHE |
| Model Number | 26443000 |
| Item Weight | 10.4 Kilograms (22.9 pounds) |
| Product Dimensions | 26.46 x 13.31 x 12.99 inches |
| Mounting Type | Wall Mount |
| Number of Handles | 1 (Control Unit) |
| Handle Material | Brass |
| Included Components | Shower Head (Overhead and Hand Shower) |
7. Warranty and Support
GROHE stands behind the quality of its products. This GROHE Rainshower Smart Control 360 Duo Shower System is covered by a comprehensive warranty.

Image 7.1: The GROHE 5 Year Guarantee logo, indicating extended product assurance.
For specific warranty terms and conditions, please refer to the documentation included with your product or visit the official GROHE website. For technical assistance, spare parts, or to initiate a warranty claim, please contact GROHE customer support through their official channels.
GROHE Official Website: www.grohe.com





