---
product_id: 286612489
title: "iSpring F21KU75 2-Year Reverse Osmosis Water Filter Replacement for 7-Stage 75GPD RO Alkaline UV Systems, Fits RCC7AK-UV"
brand: "ispring"
price: "S$128"
currency: SGD
in_stock: false
url: https://www.desertcart.sg/products/286612489-ispring-f21ku75-2-year-reverse-osmosis-water-filter-replacement-7
store_origin: SG
region: Singapore
---

# Quick push-fit filter replacement 75 GPD high flow rate 97% TDS rejection for pure water iSpring F21KU75 2-Year Reverse Osmosis Water Filter Replacement for 7-Stage 75GPD RO Alkaline UV Systems, Fits RCC7AK-UV

**Brand:** ispring
**Price:** S$128
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your hydration game with premium purity and effortless freshness!

## Quick Answers

- **What is this?** iSpring F21KU75 2-Year Reverse Osmosis Water Filter Replacement for 7-Stage 75GPD RO Alkaline UV Systems, Fits RCC7AK-UV by ispring
- **How much does it cost?** S$128 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/286612489-ispring-f21ku75-2-year-reverse-osmosis-water-filter-replacement-7)

## 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 calcium, magnesium & potassium for balanced, refreshing hydration.
- • **Effortless Quick-Connect:** Push-fit design slashes filter replacement time—no plumber needed, no mess.
- • **2-Year High-Capacity Pack:** Enjoy uninterrupted crystal-clear water for 24 months without hassle.
- • **7-Stage Advanced Filtration:** From sediment to UV sterilization, every sip is ultra-purified and mineral-rich.
- • **Trusted Compatibility & Support:** Perfect fit for RCC7AK-UV systems with top-rated customer service backing you up.

## Overview

The iSpring F21KU75 is a comprehensive 21-piece, 2-year replacement filter set designed for 7-stage reverse osmosis alkaline UV water systems. Featuring a 75 gallons per day Thin Film Composite membrane with 97% TDS rejection, it delivers crisp, mineral-balanced alkaline water enhanced with natural calcium, magnesium, and potassium. The quick push-fit connectors enable fast, mess-free filter swaps, ensuring your RCC7AK-UV system consistently provides superior tasting, contaminant-free water.

## Description

What is included: - 4 pieces of 5 Micron Sediment Filters #FP15 - 4 pieces of Granular Activated Carbon (GAC) Filters #FG15 - 4 pieces of 5 Micron CTO Carbon Filters #FC15 - 1 piece of 75GPD RO membrane #MC7 - 2 piece of Post Carbon Inline filters #FT15 - 4 piece of Alkaline Mineral filters #FA15 - 2 piece of 11W UV light bulb #UVB11 Fit Models -RCC7AK-UV -RCC1UP-AK Specifications & Dimensions: - Length: 9 3/4", O.D. = 2 7/8" - 1/4" Fitting -Weight: 21 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. 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 | #117,036 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #263 in Under-Sink Water Filters |
| Brand Name | iSpring |
| Compatible Refrigerator Models | Whirlpool WRS325SDHW |
| Compatible Water Purifier Models | iSpring RCC7AK-UV |
| Customer Reviews | 4.8 4.8 out of 5 stars (57) |
| EU Spare Part Availability Duration | 2 Years |
| External Testing Certification | No |
| Global Trade Identification Number | 00662425058570 |
| Included Components | Water Filter and Fittings |
| Item Dimensions D x W x H | 7.3D x 7.3W x 24.8H centimeters |
| Item Type Name | Water Filters |
| Manufacturer | iSpring |
| Manufacturer Part Number | F21KU75 |
| Material Type | Polypropylene (PP) |
| Model Number | F21KU75 |
| Number of Items | 1 |
| Product Benefits | Improves water taste and quality, provides alkaline water with essential minerals |
| Set Name | 21 Piece Set |
| UPC | 662425058570 |
| Unit Count | 1 Count |

## 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:** 7.3D x 7.3W x 24.8H centimeters

## Images

![iSpring F21KU75 2-Year Reverse Osmosis Water Filter Replacement for 7-Stage 75GPD RO Alkaline UV Systems, Fits RCC7AK-UV - Image 1](https://m.media-amazon.com/images/I/81Izt32HWCL.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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**Shop now:** [https://www.desertcart.sg/products/286612489-ispring-f21ku75-2-year-reverse-osmosis-water-filter-replacement-7](https://www.desertcart.sg/products/286612489-ispring-f21ku75-2-year-reverse-osmosis-water-filter-replacement-7)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-12*