By Nature2



Model # 20092

Manufacturer Code W28175

Alternate Part #'s W26775, W28175EACH, ZODW28175

Product Description

This is the replacement cartridge only for both the in-ground and above ground pool models of the Nature2 Express.

If you need the complete Nature2 Express system,  we carry the In-Ground pool model and the Above Ground pool model.

It is recommended that you replace your Nature2 cartridge every 6 months.  After 6 months, there is not enough residual silver in the cartridge for proper sanitization.

Please note:  you may need to replace it within 3 - 5 months if you live in an area with high temperatures, run your pool filter 24 hours/day and/or have heavy bather loads.  

Product Specifications

Treatment Capacity:
25,000 gal.

?     Asked on 7/14/2006by Guest

I would like to know what type of weekly maintenance (chemicals) is necessary with the Nature2 system?

A  Answered on 7/14/2006 by InyoPools Product Specialist Patrick P.

With the Nature2 you would maintain your pool the same way as if you did not have Nature2.  The only thing that will change is that you will maintain a lower chlorine residual with the Nature2. Instead of maintaining a chlorine residual of 3.0, you would maintain a chlorine residual of 1.5 with Nature2.  This results in using approximately 50% less chlorine.

?     Asked on 12/11/2012by Guest

Will the Nature 2 cartridge last 6 months no matter what?

A  Answered on 12/11/2012 by InyoPools Product Specialist Patrick P.

No, higher temps, 24 hour filtration and heavy bather loads will decrease the life span of the cartridge to approximately 3-5 months.

?     Asked on 1/23/2015by mike

Does the nature 2 express cartridge fit all Nature2 Express frames? I have an existing one and just want to make sure i get the right replacement cartridge.

A  Answered on 1/26/2015 by InyoPools Product Specialist Robert M.

Hello Mike - Cartridge number 20092 will fit any of the Nature2 Express Vessels.

?     Asked on 7/28/2015by Inyo Visitor


A  Answered on 7/30/2015 by InyoPools Product Specialist Lennox H.

Hi, I was not able to find any information on the Nature 2 AQTG 35 Unit. You can contact Zodiac at 7.800.822.7933 to confirm if the Nature2 Express Cartridge Only (W28175) will work.

?     Asked on 8/28/2016by Larry

Do your cartridges have the clear/smoked top or the opaque one.

A  Answered on 8/29/2016 by InyoPools Product Specialist Alan M.

Hello, The replacement Nature2 Express Cartridge has a see through smoke colored dome.


Est. Repair Time

Less than 1 hr

Tools Needed


change cartridge

Written on 7/21/2018 by Joe C.

unscrew lid, install new cartridge, re-install lid. Done!!!

Were these instructions helpful? 


Est. Repair Time

1 to 2 hrs

Tools Needed

Strap Wrench

Nature 2 express cartridge needed replaced.

Written on 4/24/2018 by Guest

1. I have done this many times before, turn off the pump, remove the old cartridge and put in the new one. Turn pump back on and check for leaks.

2. That is where the problem came in....I could not get the new cartridge to stop leaking. I removed, cleaned and re-lubed it 5 times. Still no luck.

3. Out of desperation, I removed the cartridge again, removed the O-ring and inspected the O-ring groove. Sure enough the grove had two small ridges from the mold halves in the O-ring groove. I removed the ridges with a very small chisel and cleaned the groove. Lubed it up, put the O-ring back and the leak was fixed. Seems that QA at the factor isn't picking up on this.

Were these instructions helpful? 


Review Summary

 (Average 4.79  out of 5 stars)
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