---
product_id: 16345202
title: "iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece"
brand: "ispring"
price: "2208.37 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/16345202-ispring-f21ku75-nsf-certified-2-year-reverse-osmosis-water-filter
store_origin: TN
region: Tunisia
---

# 21-piece quick-connect set 75 GPD high flow rate 97% TDS rejection NSF certified iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece

**Brand:** ispring
**Price:** 2208.37 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with every sip—because your water should work as hard as you do.

## Quick Answers

- **What is this?** iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece by ispring
- **How much does it cost?** 2208.37 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/16345202-ispring-f21ku75-nsf-certified-2-year-reverse-osmosis-water-filter)

## 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

- • **Alkaline Mineral Boost:** Restore essential minerals like calcium and magnesium for balanced pH and revitalized hydration.
- • **Long-Lasting 2-Year Supply:** Individually wrapped cartridges ensure fresh, hassle-free replacements for two full years.
- • **Premium 7-Stage Filtration:** Experience ultra-pure water with sediment, carbon, alkaline mineral, and UV filters working in harmony.
- • **Certified Purity & Performance:** NSF/ANSI tested membrane guarantees up to 97% TDS removal for crystal-clear, great-tasting water.
- • **Effortless Quick-Connect Design:** Push-fit filters make swapping cartridges a breeze—no plumber needed, no downtime.

## Overview

The iSpring F21KU75 is a comprehensive 21-piece replacement cartridge set designed for 7-stage 75 GPD reverse osmosis systems. NSF certified for up to 97% TDS rejection, it includes sediment, granular and carbon block filters, alkaline mineral filters to restore essential minerals, and UV filters for added purification. With a 2-year supply and quick-connect design, it ensures premium water quality and effortless maintenance for health-conscious professionals.

## Description

F21KU75
RCC7AK-UV
F3
F21KU75
F31KU75

## 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. TDS rejection rate up to 97% (under NSF58 testing condition)
- Alkaline mineral filter produces ph-balanced alkaline water with restored minerals such as natural calcium, magnesium, and potassium ions
- 21 pieces of 10" x 2. 5" replacement water filters included: 4x sediment filters, 4x granular activated carbon filters, 4x carbon block filters, 2x post-carbon filter, 4x alkaline filters, and 2x ultraviolet light bulb
- 75GPD Thin Film Composite (TFC) Membrane included, tested by independent third-party to meet NSF/ANSI Standard. 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 |
|---------------|-------|
| Asin | B00BOCDJGK |
| Best Sellers Rank | #127,519 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #751 in Replacement Under-Sink Water Filters |
| Brand Name | iSpring |
| Compatible Water Purifier Models | AquaTru Alkaline, Connect, iSpring RCC1UP-AK, iSpring RCC7AK-UV |
| Customer Reviews | 4.8 4.8 out of 5 stars (58) 4.8 out of 5 stars |
| External Testing Certification | No |
| Global Trade Identification Number | 00662425058570 |
| Included Components | Water Filter and Fittings |
| Item Dimensions D X W X H | 12"D x 16"W x 16"H |
| Item Type Name | Water Filters |
| Manufacturer | iSpring |
| Manufacturer Part Number | F21KU75 |
| Material Type | Polypropylene (PP) |
| Model Number | F21KU75 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Product Benefits | Improves water taste and quality, provides alkaline water with essential minerals |
| Set Name | 21 Piece Set |
| Unit Count | 1 Count |
| Upc | 662425058570 |

## Product Details

- **Brand:** iSpring
- **External Testing Certification:** No
- **Material:** Polypropylene (PP)
- **Product Benefits:** Improves water taste and quality, provides alkaline water with essential minerals
- **Product Dimensions:** 12"D x 16"W x 16"H

## Images

![iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece - Image 1](https://m.media-amazon.com/images/I/81Izt32HWCL.jpg)
![iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece - Image 2](https://m.media-amazon.com/images/I/71s13-IdA-L.jpg)
![iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece - Image 3](https://m.media-amazon.com/images/I/71L1eHpcH9L.jpg)
![iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece - Image 4](https://m.media-amazon.com/images/I/71Vt4c+T9oL.jpg)
![iSpring F21KU75 NSF Certified 2-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 75 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters, 21 Piece - Image 5](https://m.media-amazon.com/images/I/71WIOj4HZrL.jpg)

## Available Options

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

## Frequently Bought Together

- iSpring F21KU75 2-Year Reverse Osmosis Water Filter Replacement for 7-Stage 75GPD RO Alkaline UV Systems, Fits RCC7AK-UV
- iSpring RCC7AK-UV, NSF Certified, 7-Stage Under Sink Reverse Osmosis Water Filtration System with Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation
- iSpring ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-11-07*