Main Menu

Referral
Warranty
Blog
FAQ
Account
- Login

0 Items - $0.00

Home
- Referral
- Warranty
- Blog
- FAQ
- Account
  - Login
Reverse Osmosis
- 5-Stage Essence RO
- 6-Stage RO with Alkaline Filter
- 6-Stage RO with UV Filter
- 7-Stage RO with AK and UV Filter
- Deionizer RO (0 TDS)
- Tankless RO
- Countertop RO
Under Sink
Whole House
- Spin-down Water Filters
- Heavy Duty Water Filters
- Regular Water Filters
- UV Water Filters
- Salt-free Water Descaler & Water Softener
- Central Water Filter
- Water Leak Detector
- Well Water Chlorinator
- Whole House Solutions for Different Water Sources
Countertop
Faucet Mount
- DF1/DF2 Series
Other Filters
- RV Water Filter
- Spotless Car Wash System
- Water Bottle
- Refrigerator Water Filters
- Water Dispenser
- Shower Filter
Faucets
- Drinking Water Faucets
Maintenance
- Replacement Filters
- Replacement Filter Sets
- Parts and Accessories
- Push Fit Plumbing Fitting
- Extended Warranty
Blog

Home
Filter Packs for CUA4
iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply

iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply

Name: iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply
Brand: iSpring
SKU: F3-CUA4
Price: 60.99 USD
Availability: InStock
Rating: 5 (4 reviews)

Reviews (4)

$60.99

Triple the Savings, Triple the Joy!

Code:BLACK250-Save $250 on Orders Over $1000

Code:BLACK100-Save $100 on Orders Over $500

Code: BLACK50-Save $50 on Orders Over $300

Valid Date: 11.21.2024 -12.02.2024.

Qty:

Total Price:

Eligible for FREE Shipping Orders Over $35 within US 48 cont. states

Shipping Details

Add to Cart Buy Now

About this item

Three-piece filter pack including (1) PP sediment filter, (1) KDF+GAC filter, and (1) AC filter. Change every 6 months
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine and odor.
30-Day money back and 1-year satisfaction guarantee. Free lifetime tech support from our Atlanta base

Frequently Bought Together

iSpring CU-A4 4-Stage 0.01 Micron Tankless Under Sink / Inline Drinking Water Ultra Filtration System for Sink

Total Price: $364.97

Add all three to Cart

Choose items to buy together.

Please choose options for all selected products

This Item: F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply $60.99

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 $207.99

Choose Options

Extended Warranty

3-Year Warranty 5-Year Warranty 10-Year Warranty

F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs $95.99

iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply

$60.99

Description
Reviews (4)
Related Products (13)
Support

What's included

1 x First Stage: 5 Micron Sediment filter removes rust, sand, and solid impurities in water to protect delicate UF membrane. Last 6 months with average city water.
1 x Third Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon. When used with carbon, KDF can extend carbon filter life for up to 8 times. Last 6 months with average city water.
1 x Fourth Stage: Post Activated Carbon Filter Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor. Last 6 months with average city water.

Availability: In Stock
Model: F3-CUA4
Manufacturer: iSpring

Reviews with images

Write Review

Rating: *

Your Name: *

Email *

Your Review: *

Enter the code into the box then submit: *

Juan Flores |

2020-05-30

Easy to replaced the filters. Great product!

Thank you for your feedback.

Daniel Sowers |

2019-05-09

Great filter pack with great price.

Thank you for your feedback.

Shawn Kuehn |

2019-04-25

Grate filters AND very easy to install.

Thank you for your feedback.

Dan Rose |

2019-06-09

Easy to replace and works great. Very happy with the filters.

Thank you for your feedback.

Per Page 1 - 4 of 4

iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment Carbon Carbon (Newest Version)
$127.99
iSpring RCC7AK, NSF Certified 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH Remineralization RO Water Filter System Under Sink, Superb Taste Drinking Water Filter
$215.99
iSpring WGB32B Whole House Water Filter System, Highly Reduces Sediment, Taste, Odor, and up to 99% Chlorine, 3-Stage w/ 20-Inch Sediment and Carbon Block Filters, 1" Inlet/Outlet
$485.99
iSpring F5-CUA4 Replacement set, Fits CU-A4 Ultra Filtration 5-Filter Annual Replacement Pack
$76.99
iSpring FP15Q Quick-Change 5 micron Sediment Filter, Fits CU-A4 Ultra Filtration System
$32.99
iSpring FT15Q Quick-Change Inline Carbon Filter, Fits CU-A4
$25.99
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
$207.99
iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs
$95.99
iSpring FUF1 Ultra Filtration UF Membrane, Fits CU-A4
$42.99
iSpring WGB32BM Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House
$503.99
iSpring FKG15Q Quick-Change Inline KDF/Carbon Filter, Fits CU-A4 Ultra Filtration System
$35.99
iSpring WSP Reusable Whole House Spin Down Sediment Water Filter, 1" MNPT 3/4" FNPT w/Push to Connect Fittings, Lead-Free Brass
$61.99
iSpring RO500-BN NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio, White
$563.99

Warranty Registration & Help Center

Tell us about your shopping experience

About Us

iSpring Water Systems is a water filtration company specializing in creating efficient clean water solutions for a variety of residential and commercial needs. iSpring has been located in the Greater Metro Atlanta area for nearly two decades and is made up of a team of water filtration specialists who place a high emphasis on strict quality control and customer satisfaction. The team at iSpring aims at providing water filtration solutions that increase the customer’s quality of life and thrives on customer peace of mind. iSpring Water Systems specialize in easy, DIY installations of total water solutions for the whole house as well as small businesses. The company’s mission is to make clean drinking water accessible and affordable to all consumers while also decreasing the environmental impact of plastic waste from purchased drinking water.

Our products include residential and commercial reverse osmosis (RO) systems, whole house water filtration systems, ultrafiltration systems, under sink filter systems, and countertop water filters. We also carry a variety of consumer products such as shower filters, faucets, various filter cartridges, and connector fittings. View our complete line of products and visit our knowledge base for product buying guides and tips in order to choose the right solution for your home or business.

Contact Us

iSpring Customer Support Center
(678) 801-9308 M-F 9-5 EST
(678) 261-7611 M-F 9-5 EST
(470) 560-0012 M-F 9-5 EST (Messaging only)
2480 Industrial Park Blvd, Cumming, GA 30041

Testimonials

"5.0 of 5 stars Great filtration system May 7, 2018
Verified purchase
This review is from: iSpring WGB22B 2-Stage Whole House Water Filtration System
Such a great whole home filtration system! This system is very large, big enough to be used for a business. The filters last a long time as well."
By Mrs. Maples
" 5.0 of 5 stars love it! Water tastes great - we are very ... May 6, 2018
Verified purchase
This review is from: iSpring RCC7P-AK Under Sink 6-Stage Reverse Osmosis Drinking Water Filtration System
Have had the system for about six weeks; love it! Water tastes great - we are very happy with system. Have not run into any problems. Would recommend this systems highly!"
By Amazon Customer
"5.0 of 5 stars We had an RO system before and the water with this new system taste better. May 4, 2018
Verified purchase
This review is from: iSpring RCC7 Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System
The installation of the RO system is simple. We had an RO system before and the water with this new system taste better."
By KC Cox
"4.0 of 5 stars Great filter - water takes great May 4, 2018
Verified purchase
This review is from: iSpring RCC7P-AK Under Sink 6-Stage Reverse Osmosis Drinking Water Filtration System
Great filter - water takes great. Lab results were excellent. Valve on faucet leaked after a few months, iSpring immediately replaced under warranty, free of charge."
By HMA
"5.0 of 5 stars Easy installation, no leaks, and tasty water! May 3, 2018
Verified purchase
This review is from: iSpring RCC7 High Capacity Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System
System was easy to install following directions and fits under our small sink area perfectly. We've had it for several months now and there have been no leaks or issues with any of the components and the water still tastes excellent! Video shows our under-sink cabinet with the system installed."
By Megan Lahti
"5.0 of 5 stars A great system upgradeNovember 21, 2017
Verified Purchase
I needed a new RO system. My old system was over 7 years old, it was time for something better. I found the ispring had a 6stage RO system. I also looked at the cost & availability of replacement filters. I like the fact there are filter kits to buy, and are reasonably priced. ... The water from the new system has a nice taste. Overall, the system was well laced,easy to install & works great. I would buy this system again."
By Ken

Newsletter Signup

FAQs
About Us
Privacy Policy
Return Policy
Shipping
About Prop65
Charitable Ventures
What Others Said
Job opennings
Water Education
- Hydropower Energy
- Water Pollution
- River Ecosystems
- Oceanography
- Tsunami Guide
- Hydroponics and Water
Contact Us
Site Map
Login