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?

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.

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

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.

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

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?

Does this remove flouride?

Hi ajb, Unfortunately this unit does not remove fluoride. You will need reverse osmosis in order to remove fluoride. ThanksClaudia

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iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System

iSpring CU-A4 4-Stage Ultra Filtration Under Sink Water Filter System

Product ID: 11324872

Details

Brand
iSpring
Capacity
8000 gallons
Included Components
Under sink and
Installation Type
Under Sink
Package Information
Faucet
Power Source
No Need

💧0.01μm ultrafiltration membrane

🔧Twist On/Off filter replacement

⚙️4-stage filtration tech

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Description

💧 Elevate your tap water game—pure, powerful, and hassle-free!

PREMIUM AESTHETIC - Includes sleek brushed nickel faucet that elevates your kitchen’s style and your water’s quality.
SPACE SMART DESIGN - Compact under-sink setup with no wastewater or bulky storage tank—perfect for modern kitchens.
NEXT LEVEL FILTRATION - Advanced 4-stage system with ultrafiltration, KDF/GAC, and activated carbon for superior purity.
EFFORTLESS MAINTENANCE - Twist On/Off filters and push-to-connect fittings make replacements a breeze—no plumber needed.
CRYSTAL CLEAR HYDRATION - Removes 99%+ chlorine, lead & contaminants while preserving essential minerals.

The iSpring CU-A4 is a premium 4-stage under-sink water filtration system featuring a 0.01 micron ultrafiltration membrane that removes up to 99% of chlorine, lead, and other contaminants without stripping essential minerals. Its compact design requires no wastewater or storage tank, and the included brushed nickel faucet adds a stylish touch. Easy Twist On/Off filter replacements and push-to-connect fittings ensure quick maintenance, supporting up to 8,000 gallons or 6-12 months of use.

Specifications

ASIN	B009AEJWZG
Best Sellers Rank	#3,872 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Under-Sink & Countertop Filtration
Brand Name	iSpring
Capacity	8000 gallons
Container Type	Faucet
Customer Reviews	4.6 4.6 out of 5 stars (7,236)
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 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
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
Purification Method	Mechanical Filtration, Chemical Absorption, Redox, and Ultrafiltration
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.

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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359523CFA

Duties & taxes included

In stock

Sold byAmazon MaliDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mali.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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