---
product_id: 11324872
title: "iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System"
brand: "ispring"
price: "₨5361"
currency: SCR
in_stock: true
category: "I Spring"
url: https://www.desertcart.sc/products/11324872-ispring-cu-a4-4-stage-ultra-filtration-under-sink-water
store_origin: SC
region: Seychelles
---

# 0.01μm ultrafiltration membrane 4-stage multi-technology filtration Twist-on filter replacement iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System

**Brand:** ispring
**Price:** ₨5361
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your tap water game—pure, powerful, and effortlessly pristine!

## Quick Answers

- **What is this?** iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System by ispring
- **How much does it cost?** ₨5361 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/11324872-ispring-cu-a4-4-stage-ultra-filtration-under-sink-water)

## 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

- • **Sleek & Safe Design:** Premium brushed nickel faucet with NSF/ANSI certified, lead-free, BPA-free materials.
- • **Effortless Maintenance:** Twist-on filter cartridges and push-to-connect fittings make replacements a breeze.
- • **Crystal-Clear Hydration:** Removes 99%+ chlorine, lead & contaminants while preserving essential minerals.
- • **Next-Level Filtration Tech:** Advanced 4-stage system with ultrafiltration, KDF, GAC & activated carbon for superior purity.
- • **Zero Waste, Maximum Efficiency:** No wastewater or storage tank needed—eco-friendly and space-saving design.

## Overview

The iSpring CU-A4 is a cutting-edge 4-stage under-sink water filtration system featuring a 0.01 micron ultrafiltration membrane that removes over 99% of chlorine, lead, arsenic, and other contaminants without stripping beneficial minerals. Its compact, no-waste design includes a premium brushed nickel faucet and easy twist-on filter replacements, delivering up to 8,000 gallons of clean water with NSF/ANSI certified safety and a 6-12 month filter lifespan.

## Description

iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System | 0.01μm, Space-saving, Reduces 99.99% Contaminants, Quick Filter Change, With Brushed Nickel Faucet, Up to 12 Months - Undersink Water Filtration Systems - desertcart.com

## Features

- SUPERIOR PERFORMANCE: The advance 4-stage design, which includes both Ultrafiltration and KDF/GAC stages, removes up to 99% of chlorine and chlorine treatment by-products, lead, and much more, while retaining minerals. Noted: This system is NOT a Reverse Osmosis water filtration system and does NOT lower TDS.
- 4-Stage ULTRAFILTRATION SYSTEM: PP Sediment Filter (5 microns) removes larger particles like rust, sand, dirt. Ultrafiltration membrane contains hollow fiber membrane technology with a pore size of just 0.01 microns. KDF and GAC Filter provides much better control of particularly problematic contaminants including chloramine, hydrogen sulfide, heavy metals, and other compounds. Fine Activated Carbon Filter provides final polishing.
- SIMPLE AND FLEXIBLE: NO WASTE WATER and No storage water tank required. The CU-A4 provides highly effective water filtration for any number of clean water needs - at the sink, in the refrigerator, for coffee makers and more.
- FEATURES: Come with premium brushed nickel finish drinking water faucet. All filters, tubing and other water-contacting parts are manufactured to comply strictly with NSF/ANSI standards for safety and water quality.
- EASY-TO-INSTALL AND REPLACE FILTER: Push to connect fittings for simplify setup. Filter replacement are designed for ease. No need to disconnect hoses or water lines. Just Twist On / Twist Off filter cartridges make changing filters a snap. Filter life: 6 -12 months, depending on your source water and usage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009AEJWZG |
| Best Sellers Rank | #3,300 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Under-Sink & Countertop Filtration |
| Brand | iSpring |
| Brand Name | iSpring |
| Capacity | 8000 gallons |
| Container Type | Faucet |
| Customer Reviews | 4.6 out of 5 stars 7,265 Reviews |
| Filter Life Cycle | 6 months |
| Global Trade Identification Number | 00662425053063 |
| Included Components | Under sink water filter system, parts and tubings, faucet |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 10.63"L x 4.33"W x 12.6"H |
| Item Highlight | 0.01μm, Space-saving, Reduces 99.99% Contaminants, Quick Filter Change, With Brushed Nickel Faucet, Up to 12 Months |
| Item Type Name | 4-Stage High Capacity Premium Under Sink Drinking Water System with 0.1 micron Ultra Filtration membrane |
| Item Weight | 2 kg |
| LowerTemperature Range | 40 °F |
| Manufacturer | iSpring |
| Material | 0.01μm Ultra-Filtration, Lead-free & BPA-free Material, Leak-Free, Space-Saving & Easy to Install Material 0.01μm Ultra-Filtration, Lead-free & BPA-free Material, Leak-Free, Space-Saving & Easy to Install See more |
| Material Type | 0.01μm Ultra-Filtration, Lead-free & BPA-free Material, Leak-Free, Space-Saving & Easy to Install |
| Model Name | CU-A4 |
| Model Number | CU-A4 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | 4-Stage 0.01 micron ultra-filtration, Heavy Duty, Leak Proof, Reduces chlorine, lead, arsenic, odor, metal and more |
| Part Number | CU-A4 |
| Power Source | No Need |
| Product Dimensions | 10.63"L x 4.33"W x 12.6"H |
| Purification Method | Mechanical Filtration, Chemical Absorption, Redox, and Ultrafiltration |
| Special Feature | 4-Stage 0.01 micron ultra-filtration, Heavy Duty, Leak Proof, Reduces chlorine, lead, arsenic, odor, metal and more Special Feature 4-Stage 0.01 micron ultra-filtration, Heavy Duty, Leak Proof, Reduces chlorine, lead, arsenic, odor, metal and more See more |
| UPC | 662425053063 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 °F |
| Warranty Description | 30-Day money-back guarantee. 1-Year Manufacturer Warranty. Lifetime support from Atlanta, GA. |

## Product Details

- **Brand:** iSpring
- **Capacity:** 8000 gallons
- **Included Components:** Under sink water filter system, parts and tubings, faucet
- **Installation Type:** Under Sink
- **Package Information:** Faucet
- **Power Source:** No Need
- **Product Dimensions:** 10.63"L x 4.33"W x 12.6"H
- **Purification Method:** Mechanical Filtration, Chemical Absorption, Redox, and Ultrafiltration

## Images

![iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System - Image 1](https://m.media-amazon.com/images/I/81zOpUpCr+L.jpg)

## Available Options

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

## Questions & Answers

**Q: How many gallons of water will be treated during a filter's lifespan, before they need to be replaced?  Also, is there a change indicator?**
A: The actual gallon life will vary from customer to customer. As with all replaceable filter cartridges, they have limited space to hold the contaminants they remove from your water. This means that the higher concentration of junk you have in your source water, the faster the filters will run out space to keep filtering and vice versa. The average is about 1100 gallons, but this number may not represent your source water, so individual results could either be more or less than the average.

**Q: Has anyone tested the water that comes out of the filter with a TDS meter? I checked mine today and found that the TDS was the same as the tap water**
A: Per Josh @ iSpring 3/7/2017 - this will not remove minerals present in your city's tap water, so there should be little difference in total dissolved solids (TDS) count.

**Q: Can I connect existing water line(previously connect to refrigerator,tiny size) to this unit or I have use a adaptor? and can I only connect to refrig**
A: I answered this before, but after re-reading your question I need to revise my original answer. If you are planning on using this as a primary filtered water supply you will probably find that there is not enough water flow through the original water line that is supplying water to your refrigerator. Maximum flow rate is a function of the diameter of the supply line (among other factors). You could make it work if you had to, but I am thinking the flow rate might be kind of feeble. Why not take the supply from under the sink in the kitchen?

**Q: Does this remove flouride?**
A: Hi ajb, Unfortunately this unit does not remove fluoride. You will need reverse osmosis in order to remove fluoride. ThanksClaudia

## Frequently Bought Together

- 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 ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet
- iSpring APR40 Pressure Regulator Filter Protection Valve with 1/4" Quick Connect, 40 psi

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sc/products/11324872-ispring-cu-a4-4-stage-ultra-filtration-under-sink-water](https://www.desertcart.sc/products/11324872-ispring-cu-a4-4-stage-ultra-filtration-under-sink-water)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-10-07*