2 new from $343.27

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Intex Krystal Clear Saltwater System and Ozone Filter

4.1 out of 5 stars 81 customer reviews
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  • Requires a filter pump with a flow rate between 1,500-4,000 gph (not included)
  • Ozone output: 150 milligram/hr.
  • Chlorine output: 11 gram/hr.
  • 24 Hour auto-clock cycle with timer
  • 120V with GFCI
  • Requires a filter pump with a flow rate between 1, 500-4, 000 gph (not included)
  • Ozone output: 150 milligram/hr
  • Chlorine output: 11 gram/hr
2 new from $343.27

Technical Details


Product Description

Intex krystal clear saltwater system and ozone filter. only ozone provides virtually complete, instantaneous, odorless, all-natural sanitation of pool water. ozone eliminates bacteria over 3, 000 times faster than chlorine and because it has up to 100 times the oxidizing power of chlorine, it cleans pool water without the chemical smell that swimmers often associate with chlorine.

Product Information

Product Dimensions 17.9 x 21.2 x 13.8 inches
Item Weight 33.4 pounds
Shipping Weight 36.5 pounds
Manufacturer Intex Recreation Corp L&G
ASIN B00AA8AB60
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 28665EG
Customer Reviews
4.1 out of 5 stars 81 customer reviews

4.1 out of 5 stars
Best Sellers Rank #117,028 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#595 in Patio, Lawn & Garden > Pools, Hot Tubs & Supplies > Filters & Filter Media > Pool Cartridge Filters

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
See UPDATES at bottom!

I bought this item at Walmart for $129, free shipping. One end of the hose had a broken screw-on bracket. The GFCI cord quit working after about a minute. I called Intex and was quickly connected to a helpful Virginia. She arranged to send me the replacement parts, shipping within two days.

In the meantime, I attached the broken end of the hose with a clamp to an adapter and took the GFCI apart. Someone had forgotten to tighten down the electrical leads!!! After tightening, it worked perfectly. So I will have a spare when the replacement arrives. I see that the other reviewer had a problem with the cord. Intex is losing a lot of money for forgetting to tighten three screws.

The unit can cycle on even on the low speed of my Pentair 1HP two speed pump. There is plenty of flow though my oversized Hayward S244T sand filter. After six hours at low speed, my 10k gallon in-ground pool went from 0.5ppm to 2.5ppm free chlorine. Great! When it finishes one full change of water, I expect it will be at 5ppm, which is what I measured testing directly from a return outlet.

My Floatron is now probably overkill with the ozone. The ozone kills the bad stuff in the unit, while the Floatron emits copper and silver ions to do the job in the pool. Either one lowers the chlorine demand (the amount of chlorine you need to maintain a certain ppm).

You should always target a free chlorine residual that is about 10% of your cyanuric acid (CYA) stabilizer reading for the quick reaction that you need for real bather load. I am intending to dilute CYA down to 30ppm, target my runtime for 2ppm, and float a stabilized chlorine tablet for 1ppm (thus 3ppm total of free chlorine).
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6 Comments 16 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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I hard plumbed my 22' intex pool and installed a 21" hayward sand filter (works wonderful) and this Intex SWG. As far as having a saltwater pool, the water feels much better and stays crystal clear when the SWG works. I stay on top of the maintenance and water quality. I do not see any savings with not buying chlorine tablets though. I have to purchase a new SWG every season. There appears to be a design flaw and this unit is bot built to last. You will have error code 91 and you will find yourself re-purchasing the unit over and over due to having to replace the cell. Do an internet search on the error code 91 or intex swg cell and you will see there is a design issue. Many people simply cut open and bypass the controlling unit. A replacement cell is near the cost of a new unit.
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Verified Purchase
Bought this unit to use with my spa. I have owned at least four other Intex units over the years and have installed them on my other spas. Always had good luck with them and they lasted a long time. The previous units were the less expensive Intex Saltwater units. This time I decided to upgrade when my last unit finally died. It works fine but the problem I am having, which I never had with the cheaper units is that this one cuts way down on the water flow to the spa. Something about the way the water is routed inside the cabinet restricts the water flow a lot. Since you want a strong flow on a spa, this is not good. Not sure what I am going to do. Maybe go back to the cheaper unit that had a less restricted flow.
Functions ok, water flow bad. The reason for only three stars.
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After much research into pool sanitation systems, I decided to pull the trigger on this one. Saltwater chlorination thus far has been much easier than the standard chlorine routine. The added bonus of having an ozone generator is great as well. My water has been sparkly clean and fresh.

The only thing to watch for is buildup of hard water deposits on the plates. Fortunately this design is modular unlike earlier ones and removing the plates is a breeze. I just blow out the deposits with the air compressor and reinstall. Fairly maintenance free otherwise.
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If it were possible to give it a negative review I would. It only lasted one season despite following all the recommended preventative maintenance. This second season all it would display is low salt despite it being exactly @ the 3k ppm it desires. I tried calling intex and the first operator hung up on me when I requested information on the replacement parts and the second was even less comprehendible than the first. Neither could speak English.

If you want a cheap system to last you one, maybe two, season(s) then this is your product. However, I would not recommend Intex to anyone. Spend the extra $ and get something that might last longer.
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If you don't have a saltwater pool yet, get this! DO NOT BUY THE SALTWATER COPPER SYSTEM!! Horrible design flaw, I started with that one and had to buy a new one within a few months as the cell burned through the plastic! The ozone system is a much better design. Easy to maintain, going on my 3rd season with it. One word of advice, READ THE MANUAL!!! Follow the set up instructions and you should never have a problem! I live on the East side of Washington state so we have high temps in the summer and I've never had algae. Startup runs me about $100 for Stabilizer, calcium, and algae preventer for when it's really hot (100 +) and 5 - 6 bags of salt, we have a 12 x 24 x 52" Intex Ultra. My neighbor complains about all the chemicals he buys for his above ground Doughboy, and what a pain the algae is. I just smile and say "Oh wow, I don't have that problem, I have a salt water pool." My daughter comments that her eyes don't hurt, that she can open them under water and it's like being in the bathtub. This is the easiest system to use. I've had the chlorine pools and it was a PAIN IN THE REAR! Every day I had to add something, all the chemicals in my shed, it was crazy. I do have to use some Ph minus on occasion as I noticed the Ph goes up with the addition of salt, but that's about it. I don't worry about the levels at all. I am running the system 4 hours every day at the moment and the chlorine level is at the higher end of the normal level. I do keep it a bit higher when the temps go above 95 to prevent algae, and the water doesn't smell like chlorine, it doesn't dry my skin, and it doesn't ruin my clothes. This is seriously the way to go if you have a pool!
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