---
product_id: 11353547
title: "iSpring F3 Water Filter Replacement for Under Sink Water System RCC7AK/US31 | NSF Certified, For Standard Undersink/Reverse Osmosis RO Systems, Reduces Chlorine, Extends Membrane Lifespan, 10K Gallons"
brand: "ispring"
price: "$68.21"
currency: USD
in_stock: true
category: "I Spring"
url: https://www.desertcart.us/products/11353547-ispring-f3-water-filter-replacement-for-under-sink-water-system
store_origin: US
region: United States of America
---

# 6-month high capacity lifespan Triple-stage filtration for pure water Easy DIY replacement, no hassle iSpring F3 Water Filter Replacement for Under Sink Water System RCC7AK/US31 | NSF Certified, For Standard Undersink/Reverse Osmosis RO Systems, Reduces Chlorine, Extends Membrane Lifespan, 10K Gallons

**Brand:** ispring
**Price:** $68.21
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with iSpring’s triple-filter power—because your water deserves the best!

## Quick Answers

- **What is this?** iSpring F3 Water Filter Replacement for Under Sink Water System RCC7AK/US31 | NSF Certified, For Standard Undersink/Reverse Osmosis RO Systems, Reduces Chlorine, Extends Membrane Lifespan, 10K Gallons by ispring
- **How much does it cost?** $68.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11353547-ispring-f3-water-filter-replacement-for-under-sink-water-system)

## Best For

- ispring enthusiasts

## Why This Product

- Trusted ispring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **6-Month High Capacity Pack:** Enjoy half a year of consistently clean, great-tasting water without frequent changes.
- • **NSF/ANSI Certified Quality:** Certified to meet rigorous safety and performance standards for your peace of mind.
- • **Compatible with iSpring RCC7:** Seamlessly integrates with popular reverse osmosis systems for optimal filtration.
- • **Triple-Stage Filtration Power:** Sediment, granular activated carbon, and carbon block filters work in harmony to remove chlorine, sediment, and impurities.
- • **Effortless Installation & Replacement:** Individually wrapped filters and clear instructions make maintenance a breeze—no plumber needed.

## Overview

The iSpring F3 6-Month Prefilter Water Filter pack includes three 10" x 2.5" filters (sediment, granular activated carbon, and carbon block) designed for standard undersink and reverse osmosis systems like the iSpring RCC7. Certified by NSF/ANSI, it effectively removes sediment and chlorine, extends membrane life, and offers a hassle-free replacement cycle lasting six months.

## Description

iSpring F3 6-Month Prefilter Water Filter for Standard Undersink/Reverse Osmosis RO Systems - desertcart.com

## Features

- Individually wrapped 6-month high capacity prefilter pack for most standard RO filtration systems
- Experience clean, safe, and good-tasting water every time you turn on the faucet
- 3 pieces of 10" x 2. 5" water filters included: 1x sediment filters, 1x granular activated carbon filters, and 1x carbon block filters.
- This filter pack does NOT include an RO membrane
- If you have trouble installing the filters, please refer to the user manual or contact us

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NQF490I |
| Best Sellers Rank | #4,616 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Replacement Countertop Water Filters #7 in Under-Sink & Countertop Filtration |
| Brand Name | iSpring |
| Compatible Water Purifier Models | iSpring RCC7 |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,610) |
| EU Spare Part Availability Duration | 6 months |
| External Testing Certification | NSF/ANSI |
| Global Trade Identification Number | 00662425070145 |
| Included Components | Water filters |
| Item Dimensions D x W x H | 11"D x 6"W x 6"H |
| Item Type Name | Water Filter |
| Item Weight | 0.27 g |
| Manufacture Year | 2021 |
| Manufacturer | iSpring |
| Manufacturer Part Number | F3 |
| Material Type | Carbon |
| Model Number | F3 |
| Number of Items | 1 |
| Product Benefits | Removes sediment, chlorine, and residual chlorine, extends membrane lifespan, and is easy to replace, meeting NSF/ANSI standards. |
| Set Name | Chlorine Removal Filter Pack For US31 - PP+GAC+CTO |
| UPC | 662425070145 |
| Unit Count | 3 Count |

## Product Details

- **External Testing Certification:** NSF/ANSI
- **Item Weight:** 0.27 g
- **Material:** Carbon
- **Product Dimensions:** 11"D x 6"W x 6"H

## Images

![iSpring F3 Water Filter Replacement for Under Sink Water System RCC7AK/US31 | NSF Certified, For Standard Undersink/Reverse Osmosis RO Systems, Reduces Chlorine, Extends Membrane Lifespan, 10K Gallons - Image 1](https://m.media-amazon.com/images/I/71do8xBHSiL.jpg)

## Available Options

This product comes in different **Set** options.

## Questions & Answers

**Q: Can this set of replacement filters be used for the iSpring US31?**
A: Hi,

Yes, these filters are compatible with the unit model US31. For more details, please contact us at (678)261-7611.

Regards,
iSpring Water Systems, LLC

**Q: Is the water supposed to come out foggy and fizzy?**
A: Hi Ann,

Yes, for a week or two, the water might come out cloudy due to the trapped air bubbles in the system. In time, these will dissipate and your water will begin to clear up. If you have any questions or need additional assistance, please contact us at support@123filter.com or call us at (678) 261-7611.

Thanks,

iSpring Water Systems, LLC

**Q: Will these cartridges work on an existing Culligan RO system?  How will I know?  Thanks.**
A: If the size of filter is the same and the end deals are the same then, I think they should work.

**Q: Can we use this package for WCC31?**
A: Thanks for the question! You can certainly use this filter pack for the WCC31. We use industry standard filters, so each of the 2.5" x 10" cartridges and filter packs are completely interchangeable with each other.

## Frequently Bought Together

- iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems
- iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + GAC + Carbon

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-12*