CircuPool Universal25
#7 in In-GroundFull review
A low-cost way to replace a worn-out AquaRite-style system on a smaller pool (up to 25,000 gallons) without replumbing.
Amazon $1,095$1,095
The CircuPool Universal25 rates 3.0 among in-ground salt chlorinators; the CircuPool CORE35 rates 2.9 among large pools ones. The CircuPool Universal25 costs $500 less ($1,095 vs $1,595).
CircuPool CORE35
#17 in Large PoolsFull review
The simplest CircuPool to install yourself on pools up to 35,000 gallons, with a longer full warranty than the RJ line, but no salt readout.
Amazon $1,645 CircuPool $1,595$1,595
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.
Scores side by side
These two sit in different pool type classes (in-ground and large pools), and each is scored against the reference points for its own class, so a rating says how well each does among its own pool type peers. How we rank explains each factor.
| Factor weight | CircuPool Universal25 | CircuPool CORE35 |
|---|---|---|
| Overall rating | 3.0/5 | 2.9/5 |
| Value 30% | 59 $1,095 for 1.2 lb of chlorine a day ($912 per lb/day) | 48 $1,595 for 1.4 lb of chlorine a day ($1,139 per lb/day) |
| Cell cost 20% | 76 Replacement cell $549 ($458 per lb/day) | 69 Replacement cell $737 ($526 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% | 55 Salt level readout, 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 Universal25 | CircuPool CORE35 | |
|---|---|---|
| Output | ||
| Pool type | In-ground | In-ground |
| Rated pool size (maker) | 25,000 gal | 35,000 gal |
| Chlorine output | 1.2 lb/day | 1.4 lb/day |
| Salt level | 3,000 to 4,000 ppm (ideal 3,500) | 3,000 to 4,000 ppm (ideal 3,500) |
| NSF/ANSI 50 certified | No | No |
| Cell | ||
| Replacement cell | UL25-2200-4A-1RC | CORE35-4300-8A-1RC |
| Replacement cell price | $549 | $737 |
| Self-cleaning | Yes | Yes |
| Plumbing size | 2 in | 2 in |
| Controls | ||
| Salt level readout | Yes | 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 | 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. | 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. |