Intex Krystal Clear QS500
#5 in Above-GroundFull review
A budget salt system for mid-size Intex and other above-ground pools up to 7,000 gallons.
Amazon $156.09$156.09
2.4/5
For above-ground pools up to 20,000 gallons whose owners want a salt system without cutting into the pump hoses; the short warranty is the catch.
- 20,000 galRated pool size
- 0.4 lb/dayChlorine output
- $279Replacement cell
- 3,000 to 4,000 ppm (ideal 3,000)Salt level
- 1 yearsWarranty
Check price at Amazon$449
Price checked October 27, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- No plumbing: the cell hangs in the pool and the power supply plugs into a GFCI outlet
- Works with any filter pump, since it doesn’t sit in the pump line
- Made in the USA, with a cell rated for 7,500 hours
Cons
- Only a 1-year warranty
- Replacement cell costs $279 or more, over half the price of the system
- No boost mode and only Low/Normal/High salt lights
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its pool type. How we rank explains each one.
Specifications
| Model number | CLG10A |
|---|---|
| Output | |
| Pool type | Above-ground |
| Rated pool size (maker) | 20,000 gal |
| Chlorine output | 0.4 lb/day |
| Salt level | 3,000 to 4,000 ppm (ideal 3,000) |
| NSF/ANSI 50 certified | No |
| Cell | |
| Replacement cell | CLG10A-010 |
| Replacement cell price | $279 |
| Rated cell life | 7,500 hours |
| Self-cleaning | Yes |
| Controls | |
| Salt level readout | No |
| Flow sensing | None |
| Boost mode | No |
| Wi-Fi | No |
| Voltage | 120/230 V |
| Warranty and models | |
| Warranty | 1 years |
| Warranty terms | 1-year warranty (product page and brochure). The manual voids it for acid-cleaning damage, a power supply not mounted vertically, or a cell left in freezing water. |
| Released | 2013 |
Alternatives in this pool type
Intex Krystal Clear QS400
#6 in Above-GroundFull review
A low-cost salt system for small Intex and similar frame pools up to 4,500 gallons with a small filter pump.
Amazon $122.99$122.99
Hayward AquaTrol
#8 in Above-GroundFull review
Hayward’s salt system for above-ground pools up to 18,000 gallons, easy to install yourself but costly for its size and short on warranty.
Amazon $1,169$1,169
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