Part # W28001
Replacement Cartridge for DuoClear® Sanitizing System – 35K Gallon
Natural Mineral Sanitizer | Reduces Chlorine Use | Lasts Up to 6 Months
This DuoClear® replacement cartridge uses natural minerals to sanitize your pool while significantly reducing the need for chlorine. The 35K gallon cartridge contains silver to kill bacteria and copper to control algae, allowing you to maintain just 0.5 ppm of chlorine for complete sanitization. The result: cleaner water with less odor, reduced irritation, and a soft, silky feel.
✅ Key Features
➡️ For DuoClear® 35K gallon systems
➡️ Silver ions kill bacteria; copper ions control algae
➡️ Reduces chlorine use and minimizes odor/irritation
➡️ Lasts up to 6 months under normal conditions
➡️ Easy replacement design — no tools required
✅ Compatibility
DuoClear® 35K (standard use)
DuoClear® 25K (cartridge lasts longer than 6 months)
DuoClear® 45K (cartridge lasts slightly less than 6 months)
⚠️ Important:
Do not use cartridge longer than 6 continuous months in standard applications.
Without sufficient silver residual from the cartridge, the DuoClear® system will not sanitize effectively, even at full chlorine output.
➡️ Maintain crystal-clear, silky-smooth water with the DuoClear® mineral cartridge.
Order today for fast shipping and reliable pool sanitization.
Click here for more Nature2
I'm not sure if I need the ionizer part W28000, W28001 or 28002. All three are listed on the body of the filter (or whatever you call it) that houses the ionizer.
Please advise. :)
Reply
Hi Kent, You will have to select the unit that is adequate for your size pool.
Reply
The Most Helpful Review
2 0
(5 out of 5 stars) Great clarity and swim quality of saltwater.
Reviewed By: cmoreno from Naples, FL ()
Stands up to everything stated in your product material even to the longevity of the cartridge life. Thanks and we will keep using this product as long as we have our saltwater pool.
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The Most Recent Reviews
(4 out of 5 stars)
Reviewed By: Ronnie S. ()
Was cheaper than buying here at the local pool store.
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(5 out of 5 stars) Very easy, fast and great products!
Reviewed By: BCHTx from Royse City, TX ()
Great service, fast delivery, better pricing than all others I found for the duoclear cartridge. I will be buying other supplies here!
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(4 out of 5 stars) Excellent
Reviewed By: Janelle K. from Houston, TX ()
Just what I needed.
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(5 out of 5 stars) Great System
Reviewed By: Nancy W. from Oneida, TN ()
Best purification system I have used in the 33 years I have had a pool. Recommended it highly to others.
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(5 out of 5 stars) NATURE2 mineral filter
Reviewed By: Ralf N. from CHICAGO IL ()
This filter costs a lot less than what is sold at the local pool stores. It is the same quality as the manufacturer and works great! Very fast shipping and great customer service !!!
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(5 out of 5 stars) Crystal clear water
Reviewed By: Brian W. from Dallas texas ()
Pros: Crystal clear water
Cons: Only lasts 6 months
After opening my pool for the new season and getting all the chemicals balanced the water still looked a bit cloudy. I remember I needed a new dura clear cartridge, after install the new one the pool was crystal clear. This product makes a noticeable difference in the clarity of the water.
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(5 out of 5 stars) Nature2 Duo cartridge
Reviewed By: Jason C. ()
I recently installed this unit and I could not be more impressed with this product. I wish I had done this a few years back. My chemicals are more stable than ever.
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