CircuPool SJ55
#12 in Large PoolsFull review
A basic, budget-minded salt system for large pools whose owners want to avoid acid cell cleaning; the short warranty and high salt level are the trade-offs.
Amazon $1,495 CircuPool $1,355$1,355
The CircuPool SJ55 is the better salt chlorinator overall, rated 3.2 to 3.0. The CircuPool SJ55 leads on value and cell cost. The CircuPool CORE55 wins on warranty. The CircuPool SJ55 costs $540 less ($1,355 vs $1,895).
CircuPool CORE55
#15 in Large PoolsFull review
A plug-in, all-in-one salt system for larger pools (up to 55,000 gallons) with two years of full coverage; pick an RJ60+ if you want a salt readout.
Amazon $1,895$1,895
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the CircuPool SJ55 for value ($1,355 for 2.3 lb of chlorine a day ($589 per lb/day) vs $1,895 for 2 lb of chlorine a day ($948 per lb/day)) and cell cost (Replacement cell $745 ($324 per lb/day) vs Replacement cell $862 ($431 per lb/day)).
- Choose the CircuPool CORE55 for warranty (2-year cell, 2-year control center warranty vs 1-year cell, 1-year control center warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large pools salt chlorinator; a clear win is highlighted. How we rank explains each one.
| Factor weight | CircuPool SJ55 | CircuPool CORE55 |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Value 30% | 81 $1,355 for 2.3 lb of chlorine a day ($589 per lb/day) | 57 $1,895 for 2 lb of chlorine a day ($948 per lb/day) |
| Cell cost 20% | 96 Replacement cell $745 ($324 per lb/day) | 80 Replacement cell $862 ($431 per lb/day) |
| Warranty 20% | 0 1-year cell, 1-year control center warranty | 25 2-year cell, 2-year control center warranty |
| Features 20% | 30 Cold-water shutoff, flow sensing, boost mode | 30 Cold-water shutoff, flow sensing, boost mode |
| Certification 10% | 0 Not certified to NSF/ANSI 50 | 0 Not certified to NSF/ANSI 50 |
Specifications
| CircuPool SJ55 | CircuPool CORE55 | |
|---|---|---|
| Output | ||
| Pool type | In-ground | In-ground |
| Rated pool size (maker) | 55,000 gal | 55,000 gal |
| Chlorine output | 2.3 lb/day | 2 lb/day |
| Salt level | 3,500 to 5,000 ppm (ideal 4,250) | 3,000 to 4,000 ppm (ideal 3,500) |
| NSF/ANSI 50 certified | No | No |
| Cell | ||
| Replacement cell | SJ55A-2100-3A-1RC | CORE55-4300-8A-1RC |
| Replacement cell price | $745 | $862 |
| Self-cleaning | Yes | Yes |
| Plumbing size | 2 in | 2 in |
| Controls | ||
| Salt level readout | No | No |
| Flow sensing | Flow switch | Flow switch |
| Cold-water shutoff | Yes | Yes |
| Boost mode | Yes | Yes |
| Wi-Fi | No | No |
| Voltage | 115/230 V | 115/230 V |
| Warranty and models | ||
| Warranty | 1 years | 2 years |
| Warranty terms | 3-year limited warranty, prorated: parts free in year 1, then supplied at 40% (year 2) and 60% (year 3) of base price. No labor or shipping. DIY installation keeps the warranty. Commercial use: 1 year. | Sold as an 8-year limited warranty, prorated: parts free in years 1-2, then supplied at 40% (year 3), 60% (year 4) and 80% (years 5-8) of base price. No labor or shipping. DIY installation keeps the warranty. Commercial use: 1 year. |