---
product_id: 409084386
title: "Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv"
brand: "ispring"
price: "€ 5.82"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.hr/products/409084386-ispring-f21ku75-7-stage-75gpd-alkaline-mineral-uv-ro-system
store_origin: HR
region: Croatia
---

# 7-stage alkaline + UV sterilization 75 GPD ultra-pure water flow 97% TDS rejection NSF-certified Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv

**Brand:** ispring
**Price:** € 5.82
**Availability:** ❌ Out of Stock

## Summary

> 💦 Elevate your hydration game with crystal-clear, mineral-rich water every day!

## Quick Answers

- **What is this?** Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv by ispring
- **How much does it cost?** € 5.82 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/409084386-ispring-f21ku75-7-stage-75gpd-alkaline-mineral-uv-ro-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

- • **Alkaline Mineral Boost:** Restore essential minerals like calcium & magnesium for balanced pH and revitalized taste.
- • **Advanced 7-Stage Filtration:** From sediment to UV sterilization, every sip is pure perfection.
- • **NSF/ANSI Certified Performance:** Independently tested to guarantee water purity and safety you can trust.
- • **2-Year High-Capacity Filter Pack:** Enjoy uninterrupted premium water for 24 months without hassle.
- • **Effortless Quick-Connect Replacement:** Push-fit design means swapping filters is fast, clean, and tool-free.

## Overview

The iSpring F21Ku75 is a comprehensive 21-piece, 2-year replacement filter pack designed for 7-stage RO alkaline UV systems. Featuring a 75 gallons per day Thin Film Composite membrane with 97% TDS rejection, it delivers pH-balanced alkaline water enriched with natural minerals. Certified to NSF/ANSI standards, the pack includes sediment, activated carbon, carbon block, post-carbon, alkaline filters, and UV bulbs, all with quick-connect fittings for easy installation and maintenance.

## Description

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: 21 LBS.

Review: Love my system - This is the easiest filter system to operate. I had my cousin install the system. Now it’s time to change the filters out. I watched the videos ispring have posted so I’m a well informed 66 year old woman. I encountered no problems or mess. There wasn’t any leakage. The filter replacement was very easy. Quality of parts excellent. Most importantly my water tastes so good. Much better than bottled.
Review: I-spring replacement filter install - Good product and was simple to install 35-40min include washing and cleaning the cartridges

## 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 |
| Benefits | Removes a wide range of contaminants including chlorine, sediment, heavy metals, and more; adds essential minerals and increases pH level. |
| Brand | iSpring |
| Brand Name | iSpring |
| Compatible Water Purifier Models | AquaTru Alkaline, Connect, iSpring RCC1UP-AK, iSpring RCC7AK-UV |
| Customer Reviews | 4.8 out of 5 stars 57 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| External Testing Certification | No |
| External testing certification | No |
| Global Trade Identification Number | 00662425058570 |
| Item Dimensions D x W x H | 30.5D x 40.6W x 40.6H centimetres |
| Manufacturer | iSpring |
| Manufacturer Part Number | F21KU75 |
| Material | Activated carbon |
| Material Type | Activated carbon |
| Model Number | F21KU75 |
| Number of Items | 1 |
| Product benefits | Removes a wide range of contaminants including chlorine, sediment, heavy metals, and more; adds essential minerals and increases pH level. Product benefits Removes a wide range of contaminants including chlorine, sediment, heavy metals, and more; adds essential minerals and increases pH level. See more |
| Product dimensions | 30.5D x 40.6W x 40.6H centimetres |
| Set Name | RCC7AK-UV |
| UPC | 662425058570 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** iSpring
- **External testing certification:** No
- **Material:** Activated carbon
- **Product dimensions:** 30.5D x 40.6W x 40.6H centimetres

## Images

![Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv - Image 1](https://m.media-amazon.com/images/I/81Izt32HWCL.jpg)
![Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv - Image 2](https://m.media-amazon.com/images/I/71s13-IdA-L.jpg)
![Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv - Image 3](https://m.media-amazon.com/images/I/71L1eHpcH9L.jpg)
![Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv - Image 4](https://m.media-amazon.com/images/I/71Vt4c+T9oL.jpg)
![Ispring F21Ku75 7-Stage 75Gpd Alkaline Mineral Uv Ro System 2-Year Supply Filter Pack Number-F21Ku75, Fits Rcc7Ak-Uv - Image 5](https://m.media-amazon.com/images/I/71WIOj4HZrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love my system
*by L***N on 31 January 2026*

This is the easiest filter system to operate. I had my cousin install the system. Now it’s time to change the filters out. I watched the videos ispring have posted so I’m a well informed 66 year old woman. I encountered no problems or mess. There wasn’t any leakage. The filter replacement was very easy. Quality of parts excellent. Most importantly my water tastes so good. Much better than bottled.

### ⭐⭐⭐⭐⭐ I-spring replacement filter install
*by A***R on 21 October 2022*

Good product and was simple to install 35-40min include washing and cleaning the cartridges

### ⭐⭐⭐⭐⭐ iSpring 2 Year Filter Replacement
*by K***. on 31 August 2025*

This was a great set to replace the filters on my iSpring Reverse Osmosis Water System. Everything I needed was included and the kit is good for 2 years! Very convenient to ensure my system continues to provide quality tasting water for the family. I also wanted to give a big shoutout to Sean from iSpring. I did not know what system I had so I called the iSpring help desk and Sean answered. He quickly identified the system and found the best deal available for my system. Sean also provided videos with step-by-step instructions that explained how to change the filters. When the package arrived, I noticed that the fittings on the new filters were different from what I had so I reached out to Sean and he sent out a conversion kit right away. After replacing all my filters, I noticed a beeping sound whenever I used the faucet so I reached out to Sean once again and he worked with me to quickly resolve the issue. This was such great customer service! Thank you Sean for all your help!!

## 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 Croatia*
*Store origin: HR*
*Last updated: 2026-09-16*