---
product_id: 20541812
title: "iSpring F31KU100 3-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 100 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters Fits RCC1UP-AK, RCC7AK-UV, 31 Piece"
brand: "ispring"
price: "$1064"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/20541812-ispring-f31ku100-3-year-reverse-osmosis-water-filter-replacement-cartridge
store_origin: NZ
region: New Zealand
---

# Quick push-fit filter replacement 100 GPD high flow rate 97% TDS rejection for pure water iSpring F31KU100 3-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 100 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters Fits RCC1UP-AK, RCC7AK-UV, 31 Piece

**Brand:** ispring
**Price:** $1064
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game—because your health deserves the purest sip!

## Quick Answers

- **What is this?** iSpring F31KU100 3-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 100 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters Fits RCC1UP-AK, RCC7AK-UV, 31 Piece by ispring
- **How much does it cost?** $1064 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/20541812-ispring-f31ku100-3-year-reverse-osmosis-water-filter-replacement-cartridge)

## 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

- • **Effortless Maintenance:** Secure push-fit quick connections make filter swaps fast and hassle-free—stay ahead of contamination.
- • **Crystal-Clear Hydration:** Experience ultra-pure, fresh water with a 7-stage filtration system that outperforms bottled water.
- • **Certified Purity Assurance:** NSF/ANSI tested Thin Film Composite membrane ensures up to 97% total dissolved solids removal.
- • **Comprehensive 31-Piece Set:** Includes sediment, carbon, alkaline, UV filters & RO membrane for 3 years of worry-free freshness.
- • **Mineral-Rich Alkaline Boost:** Restore essential minerals like calcium, magnesium, and potassium for perfectly balanced pH water.

## Overview

The iSpring F31KU100 is a premium 31-piece replacement cartridge set designed for 7-stage 100 GPD reverse osmosis systems. It features a high-capacity TFC membrane with 97% TDS rejection, alkaline mineral filters to restore essential minerals and balance pH, plus UV filters for added protection. Compatible with iSpring RCC1UP-AK and RCC7AK-UV models, this set ensures 3 years of clean, mineral-rich, and safe drinking water with easy push-fit installation.

## Description

Product Description               Product Description What is included - 6 pieces of 5 Micron Sediment Filters #FP15 - 6 pieces of Granular Activated Carbon (GAC) Filters #FG15 - 6 pieces of 5 Micron CTO Carbon Filters #FC15 - 1 piece of 100GPD RO membrane #MC1 - 3 piece of Post Carbon Inline filters #FT15 - 6 piece of Alkaline Mineral filters #FA15 - 3 piece of 11W UV light bulb #UVB11 Fit Models -RCC7AK-UV -RCC1UP-AK -Most other 7-stage Alkaline UV RO systems Specifications & Dimensions - Length: 9 3/4", O. D. = 2 7/8" - 1/4" Fitting -Weight: 29 LBS.                  From the Manufacturer               Product Description What is included - 6 pieces of 5 Micron Sediment Filters #FP15 - 6 pieces of Granular Activated Carbon (GAC) Filters #FG15 - 6 pieces of 5 Micron CTO Carbon Filters #FC15 - 1 piece of 100GPD RO membrane #MC1 - 3 piece of Post Carbon Inline filters #FT15 - 6 piece of Alkaline Mineral filters #FA15 - 3 piece of 11W UV light bulb #UVB11 Fit Models -RCC7AK-UV -RCC1UP-AK -Most other 7-stage Alkaline UV RO systems Specifications & Dimensions - Length: 9 3/4", O.D. = 2 7/8" - 1/4" Fitting -Weight: 29 LBS

## Features

- Individually wrapped 2-year high capacity filter replacement cartridge pack for 7-stage RO AK UV systems
- Experience clean water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee – even better than most bottled water
- Alkaline mineral filter produces ph-balanced alkaline water with restored minerals such as natural calcium, magnesium, and potassium ions
- 31 pieces of 10" x 2. 5" replacement water filters included: 6x sediment filters, 6x granular activated carbon filters, 6x carbon block filters, 3x post-carbon filter, 6x alkaline filters, and 3x ultraviolet light bulb
- 100GPD Thin Film Composite (TFC) Membrane included, tested by independent third-party to meet NSF/ANSI Standard. TDS rejection rate up to 97% (under NSF58 testing condition). Updated FA15 alkaline mineral filters and FT15 post-carbon filters are built with a secure push-fit quick connection, which allows faster filter replacement. If you have trouble installing the filters, please refer to the user manual or contact us

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Polypropylene (PP) |
| Product Dimensions | 10"D x 2.5"W x 2.5"H |
| Item Weight | 0.01 Ounces |
| External Testing Certification | No |
| Product Benefits | Produces pH-balanced alkaline water with restored minerals, removes impurities, and fits iSpring 7-stage RO Alkaline UV Water Systems with a 100GPD Thin Film Composite (TFC) Membrane that has been tested by an independent third-party to meet NSF/ANSI Standard with a TDS rejection rate up to 97%. |
| Brand | iSpring |
| EU Spare Part Availability Duration | 3 Years |
| Manufacture Year | 2023 |
| Set Name | 31-Piece Set |
| UPC | 662425058600 |
| Global Trade Identification Number | 00662425058600 |
| Unit Count | 1.0 Count |
| Compatible Water Purifier Models | iSpring RCC1UP-AK, iSpring RCC7AK-UV |
| Number of Items | 1 |
| Manufacturer | iSpring |
| Part Number | F31KU100 |
| Item Weight | 0.01 ounces |
| Item model number | F31KU100 |
| Is Discontinued By Manufacturer | No |
| Size | 30 Piece Set |
| Color | White |
| Style | 3-Year Replacement Filter Set |
| Item Package Quantity | 1 |
| Number Of Pieces | 31 |
| Included Components | replacement water filters |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Polypropylene (PP)
- **Product Dimensions:** 10"D x 2.5"W x 2.5"H
- **Item Weight:** 0.01 Ounces
- **External Testing Certification:** No
- **Product Benefits:** Produces pH-balanced alkaline water with restored minerals, removes impurities, and fits iSpring 7-stage RO Alkaline UV Water Systems with a 100GPD Thin Film Composite (TFC) Membrane that has been tested by an independent third-party to meet NSF/ANSI Standard with a TDS rejection rate up to 97%.

## Images

![iSpring F31KU100 3-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 100 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters Fits RCC1UP-AK, RCC7AK-UV, 31 Piece - Image 1](https://m.media-amazon.com/images/I/819apA8OjaL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality & communication with the company
*by S***M on May 8, 2025*

I've had well water for approx. 30 years and this RO system has been amazing. We got the 7 stage a little over a year ago. When I realized we prob need to get new filters I called the ispring company direct and actually had a human answer (his name was Sean). Sean had me send him a picture of our system via text and got right back to me and told me what I needed to order from Amazon. I got 2 sets so we will have an extra when the time comes.

### ⭐⭐⭐⭐⭐ Product works as expected.
*by B***G on December 18, 2021*

Awesome customer service! First of all!I bought this after I bought the water filter seven stage system when I moved into an older house that has well water. The instructions were very straightforward and installation was pretty simple to matter of making sure you have space and electrical outlets where you're installing the system.The filters are pretty simple to switch out. I recommend sanitizing the system between filter changes and getting a TDS or total dissolved solids monitor to check the water quality to get an estimation of when to change the filters if you want to change them before the prescribed time.Customer services, Mr. Don, was absolutely top-notch. I called when I had some questions about one of the filters. They changed the way the connectors work on one of the stages and included an adapter. But they also gave me a new filter because I inadvertently snapped one of the connectors off and the customer service send me a new filter free of charge and they were very professional and courteous.It's nice to have US based tech support!

### ⭐⭐⭐⭐⭐ Exactly what I needed
*by N***S on October 25, 2022*

Had this system for a long time time for replacements, Great product. I had to convert a couple things but was super easy and had everything needed.2 info tips:1 make sure you disconnect the 3rd stage tube and turn on water and flush water into bowl for a min after replacing first three stages to blow out the loose carbon helps maintain life of osmosis filter.2nd after everything has been replaced run the tank dry 2-3 times. Then leave it running for 5 mins to flush the system out, otherwise you will get a off or funky taste which comes off the new filters until they have been flushed properly.Other then that water tastes great afterwards and for a long time. Beats bottled water any day.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*