Hayward AquaRite S3 40K
#6 in Large PoolsFull review
Hayward’s flagship salt system for large in-ground pools, best bought and installed through a Hayward dealer; it can grow into Omni app control.
Amazon $2,489.99$2,489.99
The Hayward AquaRite S3 40K is the better salt chlorinator overall, rated 3.3 to 3.0. The Hayward AquaRite S3 40K leads on features. The Pentair IntelliChlor IC40 costs $78 less ($2,411.99 vs $2,489.99).
Pentair IntelliChlor IC40
#16 in Large PoolsFull review
The long-running Pentair salt system for pools up to 40,000 gallons, now back in the US; buy it through a pool pro for the 3-year warranty.
INYOPools $2,411.99$2,411.99
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 Hayward AquaRite S3 40K for features (Salt level readout, optional wi-fi module, works with hayward omni, cold-water shutoff, flow sensing, boost mode vs Works with pentair intellicenter, pentair intelliconnect, pentair easytouch, pentair intellitouch, pentair suntouch, cold-water shutoff, flow sensing, boost mode).
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 | Hayward AquaRite S3 40K | Pentair IntelliChlor IC40 |
|---|---|---|
| Overall rating | 3.3/5 | 3.0/5 |
| Value 30% | 28 $2,490 for 1.5 lb of chlorine a day ($1,694 per lb/day) | 28 $2,412 for 1.4 lb of chlorine a day ($1,723 per lb/day) |
| Cell cost 20% | 22 Replacement cell $1,800 ($1,224 per lb/day) | 50 no current cell price (neutral score used) |
| Warranty 20% | 50 3-year cell, 3-year control center warranty | 50 3-year cell, 3-year control center warranty |
| Features 20% | 90 Salt level readout, optional wi-fi module, works with hayward omni, cold-water shutoff, flow sensing, boost mode | 50 Works with pentair intellicenter, pentair intelliconnect, pentair easytouch, pentair intellitouch, pentair suntouch, cold-water shutoff, flow sensing, boost mode |
| Certification 10% | 100 Certified to NSF/ANSI 50 | 50 certification not published (neutral score used) |
Specifications
| Hayward AquaRite S3 40K | Pentair IntelliChlor IC40 | |
|---|---|---|
| Output | ||
| Pool type | In-ground | In-ground |
| Rated pool size (maker) | 40,000 gal | 40,000 gal |
| Chlorine output | 1.5 lb/day | 1.4 lb/day |
| Salt level | 1,200 to 8,000 ppm (ideal 3,200) | 2,800 to 4,500 ppm (ideal 3,600) |
| NSF/ANSI 50 certified | Yes | - |
| Cell | ||
| Replacement cell | TCELLS340 | 520555 |
| Replacement cell price | $1,800 | - |
| Self-cleaning | Yes | Yes |
| Plumbing size | 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 | Optional module | No |
| App | Hayward OmniLogic | Pentair Pool (via Pentair automation) |
| Automation compatibility | Hayward Omni | Pentair IntelliCenter, Pentair IntelliConnect, Pentair EasyTouch, Pentair IntelliTouch, Pentair SunTouch |
| Voltage | 115/230 V | 115/230 V |
| Warranty and models | ||
| Warranty | 3 years | 3 years |
| Warranty terms | Hayward's brochure gives AquaRite S3 a 3-year warranty, longer when sold and installed by a Totally Hayward partner; the product page lists 3 years parts and 1 year labor. Cells (TurboCell) carry 3 years. Accessories 1 year; commercial use 1 year. | Pentair's US relaunch page gives the reintroduced IC20/IC40/IC60 a 3-year warranty when bought through a pool professional. Pentair's warranty page gives TradeGrade products bought online a much shorter limited warranty (60 days on the product page; 1 year, parts only, on the warranty page). |
| Released | 2022-03 | 2009-11 |