Hayward AquaRite 940
#1 in Large PoolsFull review
For large in-ground pools on Pro Logic, IntelliTouch or Eos automation, with a four-year warranty, bought through a pool pro.
$2,199.99
3.5/5
Replaces an old AquaRite-style system on a large pool (up to 55,000 gallons) without replumbing, but with only a short, prorated warranty.
- 55,000 galRated pool size
- 2.5 lb/dayChlorine output
- $749Replacement cell
- 3,000 to 4,000 ppm (ideal 3,500)Salt level
- 1 yearsWarranty
Check price at Amazon$1,595Check price at CircuPool$1,395
Price checked October 27, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Drops into the plumbing of an old Hayward AquaRite or Goldline system without cutting or gluing
- Screen shows the salt level in ppm, so you rarely need a separate salt test
- High output for large pools at a lower price than CircuPool’s other 55,000-gallon systems
Cons
- Warranty is prorated after year 1 and ends after 4 years, the shortest of CircuPool’s main lines
- No Wi-Fi, app or named automation system
The CircuPool Universal family
Every CircuPool Universal model we rank, smallest first. Ratings compare each against its own pool type.
| Model | Rated pool size | Rating | Price |
|---|---|---|---|
| CircuPool Universal25 | 25,000 gal | 3.0/5 | $1,095 |
| CircuPool Universal40 | 40,000 gal | 3.3/5 | $1,295 |
| CircuPool Universal55 (this one) | 55,000 gal | 3.5/5 | $1,395 |
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 | UL55 |
|---|---|
| Output | |
| Pool type | In-ground |
| Rated pool size (maker) | 55,000 gal |
| Chlorine output | 2.5 lb/day |
| Salt level | 3,000 to 4,000 ppm (ideal 3,500) |
| NSF/ANSI 50 certified | No |
| Cell | |
| Replacement cell | UL55-2200-4A-1RC |
| Replacement cell price | $749 |
| Self-cleaning | Yes |
| Plumbing size | 2 in |
| Controls | |
| Salt level readout | Yes |
| Flow sensing | Flow switch |
| Cold-water shutoff | Yes |
| Boost mode | Yes |
| Wi-Fi | No |
| Voltage | 115/230 V |
| Warranty and models | |
| Warranty | 1 years |
| Warranty terms | Sold as a 4-year limited warranty, prorated: parts free in year 1, then supplied at 25% (year 2), 50% (year 3) and 70% (year 4) of base price. No labor or shipping. DIY installation keeps the warranty. Commercial use: 1 year. |
Alternatives in this pool type
Hayward AquaRite T-15 (W3AQR15)
#3 in Large PoolsFull review
For large in-ground pools when you want to buy a Hayward salt system online and install it yourself; dealers sell the newer AquaRite S3 instead.
Amazon $2,099$2,099
Jandy TruClear XL
#4 in Large PoolsFull review
Jandy’s newest salt system for pools up to 45,000 gallons and a direct swap for an AquaPure cell, sold through pool pros.
Compare
Compare the CircuPool Universal55 with any other salt chlorinator →
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