Introduction
This instruction manual provides essential information for the proper installation, operation, and maintenance of your GE FQK1R Single Stage Under Sink Replacement Filter. This filter is designed for use with GE GXK140TNN and GXULQK under sink water filtration systems. Adhering to these instructions will ensure optimal performance and longevity of your filter.
Safety Information
Please read all safety instructions before installing or using the filter. Failure to follow these instructions could result in property damage or personal injury.
- Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
- Ensure all connections are secure to prevent leaks.
- Do not overtighten the filter during installation, as this may damage the housing.
- Keep the filter away from direct sunlight and extreme temperatures.
- Dispose of used filters according to local regulations.
Product Overview
The GE FQK1R replacement filter is a single-stage filter designed to provide filtered water directly from your main faucet. It features a twist-and-lock design for easy, tool-free replacement.

Image: The GE FQK1R Single Stage Under Sink Replacement Filter, showing its cylindrical shape and twist-lock connection point.
Key Features:
- Compatibility: Specifically designed for GE GXK140TNN and GXULQK under sink water filtration systems.
- Advanced Filtration: Certified to reduce over 95 impurities, including lead, chlorine, PFOA/PFOS, arsenic, sediment, and cysts.
- Easy Installation: Twist-and-lock design allows for quick, tool-free filter changes without needing to shut off the water supply.
- Long Filter Life: Recommended replacement every 6 months for optimal performance.
- Certified Performance: Meets NSF/ANSI drinking water standards for reliable filtration.
Package Contents
The package contains the following item:
- 1 x GE FQK1R Single Stage Under Sink Replacement Filter
Installation (Setup)
The GE FQK1R filter features a twist-and-lock design for straightforward installation. No tools are required, and the water supply does not need to be shut off for replacement.

Image: An under-sink water filtration system installed in a kitchen cabinet, showing the filter unit connected to the water lines.
Installation Steps:
- Locate the Existing Filter: Identify the current filter cartridge in your GE GXK140TNN or GXULQK under sink system.
- Remove the Old Filter: Grasp the old filter cartridge firmly and twist it counter-clockwise until it disengages from the filter head. Pull the old filter straight down to remove it. A small amount of water may drip out; have a towel ready.
- Prepare the New Filter: Remove the protective cap from the new GE FQK1R replacement filter.
- Insert the New Filter: Align the top of the new filter with the filter head. Push the filter up into the head and twist it clockwise until it locks securely into place. You should feel it click or stop firmly.
- Check for Leaks: Slowly turn on the water supply to the system and check for any leaks around the new filter connection. If leaks occur, ensure the filter is fully seated and twisted into place.
- Flush the System: Run water from the filtered water faucet for approximately 5 minutes to flush out any air and carbon fines from the new filter. The water may appear cloudy initially; this is normal.
Important: Always ensure the filter is correctly aligned and fully twisted into the head to prevent leaks and ensure proper filtration.
Operation
Once installed, the GE FQK1R filter operates automatically as water flows through your under-sink filtration system. Filtered water will be dispensed from your dedicated filtered water faucet. No special operational steps are required beyond regular use.
Maintenance (Filter Replacement)
For optimal performance and to ensure continuous reduction of impurities, the GE FQK1R filter should be replaced every 6 months. Regular replacement prevents filter clogging and maintains water quality.
Filter Replacement Steps:
- Prepare for Replacement: Gather a new GE FQK1R replacement filter and a towel for any minor drips. You do not need to shut off the main water supply to the house.
- Remove the Old Filter: Grasp the used filter cartridge and twist it counter-clockwise until it releases from the filter head. Pull it straight down.
- Install the New Filter: Remove the protective cap from the new filter. Align the top of the new filter with the filter head, push it up, and twist clockwise until it locks securely.
- Flush the System: Run the filtered water faucet for 5 minutes to flush the new filter.
- Reset Filter Indicator (if applicable): If your system has a filter life indicator, follow your system's instructions to reset it.
Troubleshooting
Refer to the table below for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leaking from filter head | Filter not properly seated or overtightened. Damaged O-rings. | Remove and re-install filter, ensuring it is twisted fully into place. Check O-rings for damage. If damaged, contact support. |
| Low water flow from filtered faucet | Clogged filter (past 6-month life). Air in the system. | Replace the filter if it's been more than 6 months. Flush the system by running water for several minutes to clear air. |
| Unpleasant taste or odor in water | Filter needs replacement. Initial carbon fines. | Replace the filter. Flush the system for 5-10 minutes to remove any initial carbon fines. |
| Cloudy water after filter change | Air trapped in the system or carbon fines from new filter. | This is normal. Run water for 5-10 minutes until it clears. |
Specifications
| Attribute | Detail |
|---|---|
| Model Number | FQK1R |
| Material | Plastic |
| Product Dimensions (D x W x H) | 3.5" x 3.5" x 13.25" |
| Item Weight | 1.85 Pounds |
| Filter Life | 6 Months |
| External Testing Certification | CE, NSF/ANSI Drinking Water Standards |
| Compatible Systems | GE GXK140TNN, GE GXULQK |
| Reduces Impurities | Lead, Chlorine, PFOA/PFOS, Arsenic, Sediment, Cysts |
Warranty
This GE FQK1R replacement filter is covered by the standard warranty provided by GE Appliances. Please refer to the warranty documentation included with your original GE under sink filtration system or visit the official GE Appliances website for detailed warranty terms and conditions.
Customer Support
For technical assistance, replacement parts, or warranty inquiries, please contact GE Appliances customer support. You can find contact information on the official GE Appliances website or in the documentation provided with your original filtration system.
Related Information
The following video provides an overview of GE Appliances water filtration solutions, including under-sink systems. While it covers a broader range, it offers useful context on water quality and filtration benefits.
Video: GE Appliances Whole Home Water Filtration. This video illustrates various water filtration systems, including under-sink options, and highlights the benefits of filtered water throughout the home.