Introduction
The InSinkErator F-3000S Water Filtration System is designed for exclusive use with InSinkErator instant hot water tanks and faucets. This system provides the brand's highest level of filtration, ensuring great-tasting filtered water directly from your kitchen sink. It is engineered to filter out over 70 contaminants, including PFOA/PFOS chemicals, lead, VOCs, DEET, ibuprofen, naproxen, asbestos, cysts, and mercury, while also improving water taste and smell. Utilizing this filtration system contributes to reducing the use of single-use plastic bottles.
Safety Information
Please read all instructions carefully before installation and use. Keep this manual for future reference.
- Ensure all water connections are secure to prevent leaks.
- Do not expose the filter system to freezing temperatures.
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
- Only use genuine InSinkErator replacement filters.
Package Contents
Verify that all components are present before beginning installation:
- 12.5-inch by 2.25-inch F-3000S Water Filtration System
- F-3000 PFOS/PFOA Filter Cartridge
- Filter Head Bracket
- Tubing
- Fittings
- Mounting Screws

Image: InSinkErator F-3000S Water Filtration System with its included components. The main filter unit is shown upright, alongside coiled tubing and various connection fittings.
Setup and Installation
The F-3000S system features an easy DIY installation process. It is designed for under-sink installation and is compatible with F-3000, F-2000, and F-1000 replacement cartridges.
Pre-Installation Steps:
- Turn off the main water supply to your sink area.
- Gather all necessary tools (e.g., drill, screwdriver, adjustable wrench).
- Ensure adequate space under your sink for the filter unit (dimensions: 2.5 x 2.25 x 12.5 inches).
Installation Procedure:
- Mount the filter head bracket securely under the sink using the provided mounting screws. Choose a location that allows easy access for filter replacement.
- Connect the water supply line to the inlet port of the filter head using the appropriate fittings and tubing.
- Connect the outlet port of the filter head to your instant hot water tank or faucet using the provided tubing and fittings. The 1/4-inch quick-connect fitting simplifies this process.
- Insert the F-3000 filter cartridge into the filter head. The twist-and-lock design ensures a secure fit and automatically shuts off water flow during replacement.
- Slowly turn on the main water supply and check for any leaks.
- Flush the system by running water through the faucet for several minutes to clear any air or carbon fines.
Operating Instructions
Once installed, the InSinkErator F-3000S system operates automatically, providing filtered water on demand through your compatible InSinkErator instant hot water dispenser or faucet.
Filtration Process:
Water flows through the F-3000 filter cartridge, which utilizes advanced filtration media to reduce a wide range of contaminants. This includes:
- PFOS/PFOA chemicals
- Pharmaceuticals (e.g., ibuprofen, naproxen)
- Lead & Mercury
- Herbicides & Pesticides
- Chlorine Taste & Odor
- VOCs (Volatile Organic Compounds)
- Asbestos and Cysts
The system is designed to deliver clean, great-tasting water for drinking and cooking.
Maintenance
Regular filter replacement is crucial for optimal performance and continued water quality.
Filter Replacement:
- It is recommended to replace the water filter cartridge every six months or sooner if a noticeable reduction in water flow rate occurs.
- The twist-and-lock design of the filter makes replacement fast and easy, automatically shutting off water flow when the old filter is removed.
- To replace, simply twist the old cartridge counter-clockwise to remove it. Insert the new cartridge and twist clockwise until it locks into place.
- After replacing the filter, flush the system for a few minutes to ensure proper operation.
Mark your calendar to remember your next filter replacement date.
Troubleshooting
This section addresses common issues you might encounter with your water filtration system.
| Problem | Possible Cause | Solution |
|---|---|---|
| Reduced Water Flow | Clogged filter cartridge; low water pressure. | Replace the filter cartridge. Check household water pressure. |
| Unpleasant Taste/Odor | Expired filter cartridge; initial flushing not sufficient. | Replace the filter cartridge. Flush the system for a longer period. |
| Water Leakage | Loose connections; improperly seated filter; damaged O-rings. | Check all connections for tightness. Ensure filter is twisted and locked correctly. Inspect O-rings for damage. |
If issues persist after attempting these solutions, please contact InSinkErator customer support.
Specifications
| Attribute | Detail |
|---|---|
| Model Name | Premium Plus Under-Sink Water Filtration System |
| Model Number | F-3000S |
| Part Number | 45617-ISE |
| UPC | 050375026433 |
| Dimensions (L x W x H) | 2.5 x 2.25 x 12.5 inches |
| Item Weight | 1.97 pounds |
| Installation Type | Under Sink |
| Special Features | Chlorine Reduction, NSF certified |
| Supported Water TDS Level Maximum | 1000 PPM |
| Filter Capacity | 500 gallons (1892 L) |
| Flow Rate | 0.75 gpm (2.84 lpm) |
| Temperature Range | 33-100°F (0.6-38°C) |
| Pressure Range | 30-80 psi (207-552 kPa) |
Warranty and Support
The InSinkErator F-3000S Water Filtration System is backed by a 1-Year "We Come to You" Limited Warranty. Please note that the filter cartridge is not included in this warranty. Refer to the product warranty documentation for complete details and terms.
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact InSinkErator customer support directly. Contact information can typically be found on the InSinkErator official website or product packaging.
You can also visit the official InSinkErator store on Amazon for more information: InSinkErator Store





