1. Introduction
The Invacare Aquatec 900 is a raised toilet seat designed to provide enhanced support and stability for individuals with reduced mobility, disabilities, or age-related limitations. It assists users in maintaining independence and safety during toilet use by raising the seat height and offering supportive armrests.
This manual provides essential information for the safe and correct installation, operation, and maintenance of your Aquatec 900 raised toilet seat.
2. Safety Information
- Read all instructions carefully before installation and use.
- Ensure the product is securely attached to the toilet bowl before each use.
- Do not exceed the maximum weight capacity of 120 kg (264 lbs).
- Regularly inspect the unit for any signs of wear, damage, or loose components. Discontinue use if any issues are found and contact customer support.
- Keep children and pets away from the unit during installation and adjustment.
- Use only genuine Invacare replacement parts if needed.
3. Package Contents
Verify that all components are present and undamaged upon unpacking:
- 1 x Aquatec 900 Raised Toilet Seat with Armrests
- Mounting hardware (screws, clamps, gaskets)
- Instruction manual (this document)
4. Setup and Installation
The Aquatec 900 is designed for easy installation on most standard toilets. Ensure your toilet bowl dimensions are compatible before proceeding.

Figure 1: Invacare Aquatec 900 Raised Toilet Seat with Armrests, shown installed on a toilet.
- Prepare the Toilet: Remove your existing toilet seat and lid. Clean the toilet rim thoroughly.
- Position the Raiser: Place the Aquatec 900 raised toilet seat onto the toilet bowl, aligning the mounting holes with those on the toilet.
- Secure the Raiser: Use the provided mounting hardware (screws and side clamps) to firmly attach the raiser to the toilet bowl. Ensure the clamps are tightened securely to prevent any movement or wobbling. The adjustable fixing bracket allows for compatibility with various hole distances.
- Attach Armrests: Insert the armrests into their designated slots on the side of the raiser. Ensure they click into place or are secured according to the specific design.
- Verify Stability: Gently test the stability of the installed unit before initial use. It should feel firm and not shift.

Figure 2: The Aquatec 900 installed on a toilet, demonstrating its secure fit and integrated armrests.
5. Operating Instructions
The Aquatec 900 offers adjustable features for personalized comfort and support.
- Height Adjustment: The seat height can be adjusted to 6 cm, 10 cm, or 15 cm above the original toilet seat height. Refer to the specific adjustment mechanism on your unit, typically involving pins or levers, to select the desired height.
- Angle Adjustment: The seat angle can also be adjusted to provide a more comfortable and ergonomic position. This allows for fine-tuning the seating experience, potentially making it higher or lower at the front or back.
- Folding Armrests: The armrests are designed to fold up and down. This feature allows for easier transfer onto and off the toilet, especially from a wheelchair or for caregivers assisting the user. To fold, lift the armrest until it locks in the upright position. To lower, release the locking mechanism and gently push it down.

Figure 3: The Aquatec 900 with one armrest in the raised position, illustrating the folding armrest feature for easier access.
6. Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and hygiene of your Aquatec 900.
- Cleaning: Clean the unit regularly with a mild household cleaner and a soft cloth. Avoid abrasive cleaners or harsh chemicals that could damage the plastic material. Ensure all surfaces are thoroughly rinsed and dried after cleaning.
- Disinfection: For disinfection, use a suitable disinfectant product according to the manufacturer's instructions.
- Inspection: Periodically check all screws, clamps, and moving parts (like armrest hinges) to ensure they are secure and functioning correctly. Tighten any loose fasteners.
7. Troubleshooting
If you encounter any issues with your Aquatec 900, please refer to the following:
- Unit is wobbly: Ensure all mounting screws and side clamps are securely tightened. Re-check the installation steps.
- Armrests not folding smoothly: Check for any obstructions in the hinge mechanism. Clean the area and apply a silicone-based lubricant if necessary (avoid oil-based lubricants).
- Difficulty adjusting height/angle: Ensure the adjustment pins or levers are fully disengaged before attempting to change settings. Do not force adjustments.
If problems persist, contact Invacare customer support for assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Model | Aquatec 900 (Item model number: 10128-10) |
| Brand | Invacare |
| Material | Plastic |
| Color | White |
| Adjustable Seat Heights | 6 cm, 10 cm, 15 cm |
| Width between Armrests | 51 cm |
| Width of Raiser | 36 cm |
| Length of Opening | 28.5 cm |
| Wide Mouth | 20.5 cm |
| Total Width | 59 cm |
| Total Depth | 49 cm |
| Total Height | 38 cm |
| Armrest Height | 20 cm |
| Maximum Load Capacity | 120 kg (264 lbs) |
| Product Dimensions (packaged) | 23.23 x 16.73 x 0.01 cm; 1.2 kg |
| Item Weight | 1.2 kg (2.65 lbs) |
| UPC | 754465198610 |
9. Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or visit the official Invacare website. If you require technical support, have questions about your product, or need to order replacement parts, please contact Invacare customer service directly.
Invacare Contact Information: Please refer to the Invacare official website or your purchase documentation for the most current contact details.





