Replacement Salt Cells matchup
EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal) vs Pentair IntelliChlor Plus40 Salt Chlorine Generator (523735)
the $610 OEM question, ruled
EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal)
~$940 (MSRP $990)
The judges have ruled
EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal) took this fight in our Catchweight division showdown.
Ringside notes
This is the fight every Pentair pool owner has when the IC40 cell dies: pay Pentair again, or trust the aftermarket? Our replacement-cell showdown ruled it — the EverCrystal took the fight at ~$940 against the OEM Plus40's ~$1,550, a ~$610 gap for the same 40,000-gallon job. The Plus40's case is real: the tightest Pentair automation integration on a Pentair pad, and the name on the equipment matches the name on the box. Its record is the problem — 3.3★ across 176 Amazon owners, the weakest owner score on this card, at the highest price. The EverCrystal's catches are honest too: a 3.9★ record on 77 owners, nearly a quarter of whom rate it one star, no pool-automation integration (no RS-485 — if your pad runs Pentair automation, that matters), and no published rated cell life, so its true cost-per-year is unknowable — the buyer-beware our Salt Cell Cost Index tracks. Big automation pad: think hard. Everyone else: the ruling stands, and the $610 stays in your pocket.
What would decide it
- Owner proof: EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal) reads 3.9★ across 77 owners; Pentair IntelliChlor Plus40 Salt Chlorine Generator (523735) reads 3.3★ across 176. Depth of sample matters as much as the star.
- The money: EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal) streets ~$940, Pentair IntelliChlor Plus40 Salt Chlorine Generator (523735) ~$1,554 — MSRPs, not sale lows, decide the tier.
- EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal) — your pick if: your Pentair IC40 cell died, you don't run pool automation, and you'd rather spend about $940 than about $1,550 on the OEM cell — a 3.9★ drop-in (down from 4.5★ when we carded it, on a base that has nearly tripled since) with its own onboard salinity sensor.
- Pentair IntelliChlor Plus40 Salt Chlorine Generator (523735) — your pick if: your pad is already Pentair and you want the tightest automation integration — the current Plus40 cell (~$1,550). Its cell is the priciest here to feed, and its 3.3★ owner score is down from 3.6 in July even as its base has grown.
The full cards
Best value — the aftermarket IC40 cell you can actually buy · The aftermarket replacement cell for a Pentair IntelliChlor IC40 — a genuine drop-in with an upgraded flow switch and onboard temp/salinity sensor, for roughly $610 less than Pentair's OEM cell (about $940 vs about $1,550), for pools up to 40,000 gallons. Two honest catches: no automation (RS-485) integration, and a 12-month warranty.
Sold in 2 sizes on this listing (20K–40K gal) — this card is the 40,000 gal. Check the size before you add to cart.
Your pick if your Pentair IC40 cell died, you don't run pool automation, and you'd rather spend about $940 than about $1,550 on the OEM cell — a 3.9★ drop-in (down from 4.5★ when we carded it, on a base that has nearly tripled since) with its own onboard salinity sensor.
Sold by BACKYARD SUPPLY STORE, shipped by Amazon · Free 30-day refund/replacement · read 2026-10-16
Picked before we checked what this link pays us.
“Literally half the cost of a Pentair replacement. After using it so far, no issues at all. Chlorine levels are consistent.”
EverCrystal Replacement Salt Cell for Pentair IntelliChlor IC40 (40,000 gal)
Best value — the aftermarket IC40 cell you can actually buySold in 2 sizes on this listing (20K–40K gal) — this card is the 40,000 gal. Check the size before you add to cart.
Your pick if your Pentair IC40 cell died, you don't run pool automation, and you'd rather spend about $940 than about $1,550 on the OEM cell — a 3.9★ drop-in (down from 4.5★ when we carded it, on a base that has nearly tripled since) with its own onboard salinity sensor.
“Literally half the cost of a Pentair replacement. After using it so far, no issues at all. Chlorine levels are consistent.”— Jackie L, Amazon · Verified owner
- A true drop-in for the Pentair IC40 — same length and union threads, so it swaps in about 15 minutes with no plumbing changes and no special tools
- Onboard temp/salinity sensor and an upgraded flow switch — it reads your salt level itself, so it works even if your OEM power center is also aging
- Roughly $610 less than Pentair's OEM replacement cell (about $940 vs about $1,550 on Amazon, read the same day) — the whole reason to go aftermarket on an IC40
- 3.9★ across 77 Amazon ratings — an independent, buyable track record unlike the no-name generics, though the average has slipped from 4.5★ as the base doubled
- Its critical reviews are failures, not quibbles: all ten of the newest (written 2026-07-22 to 2026-10-03) are a cell that died at two to six months, a false low-salt reading, or a controller that cannot see it — and on 2026-10-16 its 77 ratings ran 62% five-star, 13% four-star, 2% two-star and 23% one-star
- No RS-485 / data connection, so it will NOT integrate with automation — Pentair IntelliCenter/EasyTouch, Jandy AquaLink, or Hayward controls won't see it or drive it. If you run automation, buy the OEM Plus40.
- 12-month warranty — level with the OEM cell's 1-yr ONLINE term (the OEM's 3-yr needs a dealer purchase and professional installation); the specialty-retailer APX P40's 'two-year' is one free year and a second with parts at half price
- Doesn't publish a rated cell-life in hours or a chlorine-output figure — the OEM quotes ~10,000 hr / 1.4 lb/day; size to your gallons and don't assume
It does not talk to the controller - owners report it reading low salt, refusing to report to a Pentair or Hayward automation system, or simply dying at two to six months.
14 written critical reviews (the critical filter's count) as of 2026-10-16; the histogram puts 23% of the 77 ratings at one star. All ten of the newest critical reviews (2026-07-22 to 2026-10-03) are a dead cell, a false low-salt reading or an automation system that cannot see it · critical reviews read 2026-10-16
Sold by BACKYARD SUPPLY STORE, shipped by Amazon · Free 30-day refund/replacement · read 2026-10-16
Pentair IntelliChlor Plus40 Salt Chlorine Generator (523735)
Best for a Pentair automation padYour pick if your pad is already Pentair and you want the tightest automation integration — the current Plus40 cell (~$1,550). Its cell is the priciest here to feed, and its 3.3★ owner score is down from 3.6 in July even as its base has grown.
“It has worked perfectly with no issues. Very happy with the control panel and how it shows the pool temp and other info.”— Shannon, Amazon · Verified owner
- The current IntelliChlor Plus40 (part 523735) — a drop-in for the now-discontinued IC40, so you're buying the live generation, not old stock
- Integrates natively with Pentair IntelliCenter/EasyTouch automation — the cleanest choice if your pad is already Pentair
- Highest-quality reputation among pros (Swimming Pool Steve names Pentair the top SWG brand) with a nationwide dealer and parts network
- Self-cleaning cell with a clear LED readout of salt level, output %, and cell life
- Its owner score is down from 3.6 in July to 3.3★ across 176, and all ten of the newest critical reviews (2026-09-08 to 2026-10-08) are failures — several on a second or third warranty cell — even though Pentair fixed the early firmware bug (bulletin A00709, units made before Oct 20, 2025) on later units, so that fix does not explain the record and the cause is not established
- The priciest replacement cell here (~$1,550 on Amazon, list $1,819) — and at ~10,000 hr that cell cost is what drives the 10-year total, the single biggest reason a salt pool gets expensive
- Bought online, Pentair's own page gives it one year, parts only — the three years needs a dealer and professional installation — and an older Pentair text still on retailer sites says two years for online IntelliChlor cells. The Amazon seller (Dolce Calma on 2026-10-16) cannot be checked against an authorized-reseller list, and owners in the critical tail report claims refused because the cell came from Amazon
Early failure is the dominant report — units dead within days to three months, several with a sensory-module error the owners say support treats as known. Running alongside it is a warranty problem specific to HOW you buy: multiple owners say a claim was refused or fought because the cell came from Amazon rather than an authorised dealer. One install catch worth knowing before you order: it needs 12 to 18 inches of straight pipe ahead of the cell for flow sensing, which the listing does not mention.
60 written critical reviews (the critical filter's count) as of 2026-10-16; the histogram puts 37% of the 176 ratings at one star. The ten newest critical reviews (2026-09-08 to 2026-10-08) are all early failures, and several describe a second or third replacement cell failing the same way · critical reviews read 2026-10-16
Sold and shipped by Dolce Calma · read 2026-10-16
FAQ
Which is better, the EverCrystal IC40 replacement or the Pentair Plus40?
Our replacement-cell showdown ruled for the EverCrystal — ~$940 vs ~$1,550 for the same 40,000-gallon rating, with a stronger (if younger) owner record: 3.9★/77 against the OEM's 3.3★/176. The Plus40's remaining case is Pentair automation integration.
When is the genuine Pentair Plus40 still the right buy?
When your pad runs Pentair automation and integration is non-negotiable — the EverCrystal has no RS-485 connection. If a dealer maintains your equipment under warranty terms, the OEM route also keeps that relationship simple.
What's the catch on the aftermarket cell?
Two honest ones: its 3.9★ record is a split base — 62% of the 77 owners rate it five stars and 23% rate it one, with very little in between — and EverCrystal publishes no rated cell life — so unlike the genuine cells in our Salt Cell Cost Index, its true cost-per-year can't be computed. You're saving ~$610 up front against an unknown lifespan.
Full fight coverage
Every number on this page derives from the same verified data that renders our showdowns — dated owner-rating reads, MSRP-based tiers, and rulings only where a real fight happened. Data last verified: 2026-10-16. Methodology and monetization disclosure: how we test.