Introduction
This manual provides essential information for the installation and maintenance of your Stokk T1-Lite Countertop Reverse Osmosis System C Replacement Filter (Model RT1 Lite-C). This filter is designed to improve water taste, reduce Total Dissolved Solids (TDS), and remove odors from your drinking water.
Compatibility: This C filter (RT1 Lite-C) is compatible with Stokk T1-Lite and E1 Series countertop reverse osmosis systems. It is NOT compatible with the Stokk T1 system. Please verify your system model before installation.
Setup and Installation
The Stokk T1-Lite C Replacement Filter (RT1 Lite-C) is designed for straightforward installation. For detailed, step-by-step instructions, please refer to the quick replacement guide provided with your filter or scan the QR code on the filter packaging.

Image: Stokk T1-Lite C Replacement Filter (RT1 Lite-C) as it arrives, sealed in protective packaging. The filter is white with "Stokk" and "RO" branding, and a QR code for a quick replacement guide.
- Preparation: Ensure your Stokk T1-Lite or E1 Series system is powered off and disconnected from the water supply.
- Remove Old Filter: Follow your system's specific instructions to safely remove the used C filter.
- Unpack New Filter: Carefully remove the new RT1 Lite-C filter from its protective packaging.
- Install New Filter: Insert the new filter into the designated slot in your system, ensuring it is securely seated according to your system's manual.
- Flush System: After installation, reconnect the water supply and power. Flush the system as recommended in your main system manual to remove any air and carbon fines before consuming water.
For visual guidance, scan the QR code on the filter packaging for the Quick Replacement Guide.
Operating Principles
The Stokk T1-Lite C Replacement Filter (RT1 Lite-C) functions as a crucial component of your reverse osmosis system. It utilizes carbon fiber material to effectively filter water, contributing to:
- Improved Taste: Enhances the overall taste of your drinking water.
- Reduced TDS: Helps in lowering the Total Dissolved Solids content in the water.
- Odor Removal: Eliminates unpleasant odors, providing fresher water.
Maintenance
Regular replacement of the C filter is essential to maintain optimal water quality and system performance.
- Replacement Schedule: The Stokk T1-Lite C Replacement Filter has a service life of 6 to 12 months. This duration can vary based on water quality and usage volume.
- Indicators for Replacement: You may notice a decrease in water flow, a change in water taste, or an increase in TDS readings if your filter needs replacement sooner than the recommended interval.
- Storage: Store unused filters in a cool, dry place away from direct sunlight.
Troubleshooting
If you encounter issues after replacing your C filter, consider the following:
- Leaks: Ensure the filter is correctly seated and tightened. Check all connections for proper sealing.
- Poor Water Quality: Verify that the filter is installed in the correct orientation (if applicable) and that the system has been properly flushed after installation.
- No Water Flow: Check if the water supply is fully open and if the filter is correctly installed.
For comprehensive troubleshooting of your Stokk T1-Lite or E1 Series system, please refer to the main instruction manual provided with your water purification unit.
Specifications
| Model Number | RT1 Lite-C |
| Material | Carbon Fiber |
| Product Dimensions (D x W x H) | 2.2"D x 2.2"W x 7.17"H |
| Service Life | 6-12 months (varies by usage and water quality) |
| Included Components | 1 x T1 Lite C Replacement Filter |
| Product Benefits | Improve Taste, Reduces TDS, Removes Odor |
Warranty and Support
Warranty: Stokk provides a 1-year spare part availability duration for this product in the EU. For specific warranty details applicable to your region, please refer to the warranty information included with your original Stokk system or contact Stokk customer support.
Customer Support: For further assistance, technical support, or inquiries regarding your Stokk T1-Lite Countertop Reverse Osmosis System C Replacement Filter, please visit the official Stokk website or contact their customer service department.