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iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs
$95.99
About this item
- 1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
- 2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable 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.
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iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs
$95.99
- Availability: In Stock
- Model: F4-CUA4
- Manufacturer: iSpring
- Product Weight: 6.00 LB
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robert | 
2021-04-04
Why should I buy one if you don't have replacement filters or don't reply to reviews.
2021-04-04
Why should I buy one if you don't have replacement filters or don't reply to reviews.
Sam |
2021-02-21
Is it discontinued ?
It's out of stock everywhere
Also after over 6 months of use, I still get a slight layer of oil from the faucet. Keep in mind that I flushed 15 gallons the 1st time I used it, but still, it releases oil with the water.
2021-02-21
Is it discontinued ?
It's out of stock everywhere
Also after over 6 months of use, I still get a slight layer of oil from the faucet. Keep in mind that I flushed 15 gallons the 1st time I used it, but still, it releases oil with the water.
Sherene Sturtevant | 
2020-04-17
Before the system, I was drinking bottled water and recycling the bottles. Now I can enjoy the pure water comes out my tap.
2020-04-17
Before the system, I was drinking bottled water and recycling the bottles. Now I can enjoy the pure water comes out my tap.
Donn Montenegro | 
2020-01-29
Easy install, good instructions, superb results! It actually tastes a lot better than bottled water.
2020-01-29
Easy install, good instructions, superb results! It actually tastes a lot better than bottled water.
Orlan Jennings |
2023-12-02
This is a great filter system. My wife has multiple chemical sensitivities and this filter works very well for her. It is also very easy to replace. I usually have a set in storage and when I change them out, I buy a new set, ready to go.
2023-12-02
This is a great filter system. My wife has multiple chemical sensitivities and this filter works very well for her. It is also very easy to replace. I usually have a set in storage and when I change them out, I buy a new set, ready to go.
Michael Gerow |
2020-04-09
It would really be nice to actually find filter replacements, I have been all over everywhere and cannot find replacements, they are all out of stock. I depend on these for medical purposes, wish I had bought from a company that could replace items when needed. What a joke!!
2020-04-09
It would really be nice to actually find filter replacements, I have been all over everywhere and cannot find replacements, they are all out of stock. I depend on these for medical purposes, wish I had bought from a company that could replace items when needed. What a joke!!
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