---
product_id: 22193200
title: "F4-CUA4"
brand: "ispring"
price: "Rp5220348"
currency: IDR
in_stock: null
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.id/products/22193200-f4-cua4
store_origin: ID
region: Indonesia
---

# 0.01-micron hollow fiber UF membrane Eco-friendly inline cartridge design 5-micron sediment barrier F4-CUA4

**Brand:** ispring
**Price:** Rp5220348
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your hydration game with next-level purity and zero hassle!

## Quick Answers

- **What is this?** F4-CUA4 by ispring
- **How much does it cost?** Rp5220348 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/22193200-f4-cua4)

## 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

- • **Sustainably Engineered:** Reduce your environmental footprint with a filter system designed to prevent secondary pollution.
- • **Trusted Longevity & Support:** Backed by lifetime personalized support from Atlanta, ensuring your water stays pristine year after year.
- • **Precision 4-Stage Filtration:** From rust to microscopic contaminants, every drop is purified with surgical accuracy.
- • **Effortless Twist-On Replacement:** No tools, no mess—just twist and snap for fresh water in seconds.
- • **Advanced KDF + Activated Carbon Combo:** Targets chloramine, metals, and odors for crisp, clean taste every time.

## Overview

The iSpring F4-CUA4 is a comprehensive 4-stage replacement filter pack featuring a 5-micron sediment filter, ultra-filtration hollow fiber membrane with 0.01-micron pores, KDF and activated carbon media for contaminant control, and a fine activated carbon post-filter. Designed for easy twist-on replacement without disconnecting hoses, it ensures consistently fresh, great-tasting water while reducing environmental impact. Supported by lifetime personalized service, it’s the go-to upgrade for iSpring CU-A4 Ultra Filtration systems.

## Description

The filter pack F4-CUA4 includes a 1st stage 5 micron sediment filter that can effectively remove rust sand and solid impurities in the water to protect the delicate UF membrane; last 6 months. The 2nd stage state-of-the-art UF hollow fiber membrane that uses standard home water pressure to push water through a Semi-Permeable membrane. Suspended particles and materials of high molecular weight are unable to pass through the 0.1 micron UF membrane, leaving you with only fresh water and dissolved minerals; it lasts 12 months. 1 x 3rd stage KDF media (or kinetic degradation fluxion media) with activated carbon KDF itself is known to remove chlorine rust unpleasant taste and odor hydrogen sulfide iron lead nickel chromium cadmium calcium aluminium mercury arsenic and other compounds. When used with carbon, KDF can extend the carbon filter life up to 8 times. It also adds a dose of zinc ions to the filter water; last 6 months. 1 x 4th stage Post activated carbon filter, adopting fine coconut shell activated carbon with ultra-micron aperture. This carbon filter absorbs residual chlorine organics humus and odor; last 6 months.

Review: Reliable Filter Set for Years of Clean Water! - I’ve been buying this iSpring filter set for years ever since I installed their under-sink filtration system, and it has been a reliable source of clean, great-tasting water for my family. The 4-stage filtration process does an excellent job of removing impurities, and I’ve noticed a big improvement in the quality of our drinking water compared to before. These filters are easy to replace, and I love that the set includes everything you need to keep your system running smoothly. The fact that I’ve been consistently buying this set for years speaks to its effectiveness and quality. While I change the filters regularly, the water remains crisp, clean, and refreshing throughout the entire lifespan of each set. Overall, this filter set has been an essential part of our household, and I couldn’t be happier with how well it works. If you have the iSpring under-sink filter, this is the perfect replacement set to keep your water pure and your system running at its best! Highly recommend!
Review: Great tasting water, good filtration system. - iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System is the only one I use for my system. Over the years we have tried various under the counter systems for our drinking water, and like the iSpring the best so far. Relatively speaking, the cartridges are easy to replace, just twist to release and install. You do need to put something under them to contain the drips on removal, but it is simple and quick. Great tasting water, and I like the inclusion of a membrane filter as I believe it lengthens the life of the charcol filter. My son and his wife have a reverse osmosis system but he still likes to fill his gigantic mug with ous when he brings the granddaughters over for a visit. Prices on desertcart are good, shipping is fast and free, so we are happy with out purchase.

## Features

- PP Sediment Filter (5 microns) removes larger particles like rust sand and dirt ) Ultra Filtration Filter (contains hollow fiber membrane technology with a pore size of just 0 01 micron ) KDF and GAC Filter (provides much better control of particularly problematic contaminants including chloramine hydrogen sulfide and metals) Fine Activated Carbon Filter (provides final polishing before the purified water is delivered to the faucet removing any possible residual chlorine tastes or odors )
- EASY-TO-REPLACE FILTER Filter replacement is designed for ease No need to disconnect hoses or water lines Just Twist On / Twist Off filter cartridges make changing filters a snap
- FEATURE iSpring F4-CUA4 Replacement filter pack includes one of each filter for CU-A4 Ultra Filtration System
- SAVE EARTH Reduce your environmental impact as the inline filter cartridge design prevents 2nd-time pollution
- 100% SATISFIED CUSTOMERS Extended manufacturer with lifetime personalized support from Atlanta, GA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TZBP2YO |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #40,411 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #310 in Replacement Under-Sink Water Filters |
| Brand | iSpring |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (399) |
| Date First Available | February 25, 2015 |
| External Testing Certification | DOT |
| Global Trade Identification Number | 00662425072774 |
| Included Components | UltraFiltration filters |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4.05 pounds |
| Item model number | CUA4 |
| Manufacturer | iSpring Water System |
| Material | Polypropylene (PP) |
| Number Of Pieces | 4 |
| Number of Handles | 1 |
| Number of Items | 1 |
| Part Number | F4-CUA4 |
| Pattern | Filtration System |
| Product Benefits | Improves water taste, reduces odor, removes contaminants including chloramine, hydrogen sulfide, and metals |
| Product Dimensions | 8"D x 10"W x 16"H |
| Set Name | CUA4 Replacement Filter Pack |
| Size | 4 Count (Pack of 1) |
| Style | 1-Year Filter Replacement Set |
| UPC | 662425072774 |
| Unit Count | 1.0 Count |

## Product Details

- **External Testing Certification:** DOT
- **Item Weight:** 1.84 Kilograms
- **Material:** Polypropylene (PP)
- **Product Dimensions:** 8"D x 10"W x 16"H

## Images

![F4-CUA4 - Image 1](https://m.media-amazon.com/images/I/41KPeusdgaL.jpg)
![F4-CUA4 - Image 2](https://m.media-amazon.com/images/I/41ndCJtC5BL.jpg)
![F4-CUA4 - Image 3](https://m.media-amazon.com/images/I/41wfdrF8yXL.jpg)
![F4-CUA4 - Image 4](https://m.media-amazon.com/images/I/513IMpRmGPL.jpg)
![F4-CUA4 - Image 5](https://m.media-amazon.com/images/I/51LmCG-d4UL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Filter Set for Years of Clean Water!
*by R***R on September 23, 2024*

I’ve been buying this iSpring filter set for years ever since I installed their under-sink filtration system, and it has been a reliable source of clean, great-tasting water for my family. The 4-stage filtration process does an excellent job of removing impurities, and I’ve noticed a big improvement in the quality of our drinking water compared to before. These filters are easy to replace, and I love that the set includes everything you need to keep your system running smoothly. The fact that I’ve been consistently buying this set for years speaks to its effectiveness and quality. While I change the filters regularly, the water remains crisp, clean, and refreshing throughout the entire lifespan of each set. Overall, this filter set has been an essential part of our household, and I couldn’t be happier with how well it works. If you have the iSpring under-sink filter, this is the perfect replacement set to keep your water pure and your system running at its best! Highly recommend!

### ⭐⭐⭐⭐⭐ Great tasting water, good filtration system.
*by D***L on July 25, 2022*

iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System is the only one I use for my system. Over the years we have tried various under the counter systems for our drinking water, and like the iSpring the best so far. Relatively speaking, the cartridges are easy to replace, just twist to release and install. You do need to put something under them to contain the drips on removal, but it is simple and quick. Great tasting water, and I like the inclusion of a membrane filter as I believe it lengthens the life of the charcol filter. My son and his wife have a reverse osmosis system but he still likes to fill his gigantic mug with ous when he brings the granddaughters over for a visit. Prices on Amazon are good, shipping is fast and free, so we are happy with out purchase.

### ⭐⭐⭐⭐⭐ Excellent Value for Home Use！
*by J***N on July 8, 2025*

This is my third time purchasing the iSpring F7-CUA4 Replacement Filter Set, and I can confidently say it offers excellent value for any household. I've compared it with other brands and local water purification systems, and this filter set strikes a fantastic balance between ease of replacement, filtration effectiveness, and cost-efficiency. I primarily use water filtered by this set for cooking. For direct drinking, however, I've noticed that its ability to filter out scale diminishes after about six months of use, largely due to the high mineral content in the water where I live. Despite this, for everyday cooking purposes, this filter set is absolutely worth buying. It consistently provides clean, great-tasting water for all my culinary needs. Highly recommended for its practicality and affordability!

## Frequently Bought Together

- iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs, White
- iSpring CU-A4 0.01μm Ultra-Filtration Under Sink Water Filter System, Tankless 4-Stage High Capacity, Remove 99.99% Contaminants, Quick Filter Change with Brushed Nickel Faucet, White
- iSpring FKG15Q Quick-Change Inline KDF/Carbon Filter for Ultra Filtration Under Sink Water Filter System CU-A4, White

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-01-27*