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CircuPool Universal25 Salt Chlorine Generator
CircuPool Universal40 Saltwater Chlorinator System

CircuPool Universal25 Salt Chlorine Generator

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Availability: In Stock.
Part Number: UL25
Retail Price:$1,195.00
You Save:$316.00(26%)
CircuPool UL25 Complete Salt Pool System with 4-Year Limited Warranty, for up to 25,000 gallon pools
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Quick Specs View Detailed Specs
Power: 1.25 lbs/day
4 Year Limited Warranty*
10000 Hours Rated Lifespan
30000 Gallons Max Capacity
2800 - 4500 ppm

The CircuPool Universal Series is a top choice for value and convenience for backyard saltwater pools. Serving as an easy replacement for existing Hayward® AquaRite® 25k models or smaller, the Universal25 is an upgrade with guaranteed compatible plumbing.

With higher power and a longer lifespan than many popular brands, its digital controller works automatically with your pump & filter and constantly monitors the salinity level and temperature of the pool which makes operation incredibly simple!

Featuring long lasting titanium electrodes and backed by award-winning service and warranty, it's one of the best values of almost any salt system in the price range. The Universal25 is an outstanding choice for anyone looking to upgrade or just dive into a great new salt chlorinator.

This adaptable system is intended to easily replace an existing Hayward style salt system with a 15,000 to 25,000 gallon rating, so the Universal25 can replace those size Hayward Aqua Rite systems with no cutting or gluing, making it a snap to upgrade your salt pool system!


  • 4-year prorated warranty on every single component.
  • Includes plumbing unions for all sizes.
  • Dual voltage option: 110/220v.
  • CircuPool products are backed by USA-Based Expert Support & USA-Based Factory Warranty

Compatible System Replacement for: Hayward® Goldline Aqua Rite®, SwimPure Plus®, AquaRite 900®, SwimPure Extreme®, Mineral Springs®, NatureSoft®, AquaPlus®, LeverEdge Guardian®, Blue Essence®, H40 systems and more. Please note that this model's individual components are not intended to be interchangeable between brands (ex: use of one brand’s electronics with another brand’s cell).

*Please note CircuPool products are not affiliated with Hayward Industries, Inc. The use of such trademarks herein is for informational purposes only, and the product(s) are not those of Hayward Industries Inc., but rather are simply compatible with the referenced Hayward product.


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Q: what is the word for conversion from saltwater to chlorine

Asked by: Richard G Steinke - 4/15/2021
A: Richard, converting your pool to saltwater is pretty easy. Basically, you would just add the equipment we carry, a saltwater chlorinator, to your existing pool and equipment. The salt chlorinator goes in the plumbing after the pump and filter. This often can be done in about an hour, and many people do this themselves. Once it is installed, you add salt to your pool (the manual describes how much based on your pool size). Salt comes in 40 lb bags, which you get from the hardware store pretty cheaply. The salt will dissolve in a day or so, then you are all set! The saltwater chlorinator sanitizes the pool whenever the pump runs, so you get beautiful, clean water without having to add anymore chlorine, shock, or algaecide.
Was this answer helpful?  31 of 38 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (4/15/2021)

Q: Will this work if installed vertically or does it have to be horizontal?

Asked by: TJ - 6/17/2021
A: It can work whether installed horizontally or vertically.
Was this answer helpful?  14 of 16 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (6/17/2021)

Q: For new installation, what length of pipe must be removed for installation of salt cell? Space is limited.

Asked by: Hoke - 5/9/2021
A: Installation calls for cutting about a 13 ¾” gap in the pvc pipe.
Was this answer helpful?  9 of 14 Customer(s) found this Answer helpful.
Answer provided by: Tim (5/10/2021)

Q: What is the power requirement for the system? I have a 220 volt feed for the pump. I plan to install it myself.

Asked by: BRIONNI BERLANGA - 5/30/2021
A: This system can work on either 220v or 110v. It is designed to be on the same circuit as the pump so they can go on and off together.
Was this answer helpful?  9 of 16 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (6/1/2021)

Q: When installing circupool universal40 cell vertically, which end of the cell flow to pool. I do not see any arrow showing which way it goes.

Asked by: NESTOR DIMAYUGA - 9/27/2021
A: The cell is not directional, it works facing either way.
Was this answer helpful?  9 of 11 Customer(s) found this Answer helpful.
Answer provided by: Jose (9/28/2021)

Q: I have a new intex 18x54 pool I’m installing. I bought the one that has the upgraded frame to resist corrosion. I’m only trying to get a couple years out of it to decide if we want to keep and maintain a real pool. Want a salt system but can’t find the intex brand. Can you advise if the CircuPool Universal25 Salt Chlorine Generator will be a good fit for this type of pool.

Asked by: Peter - 3/21/2021
A: That calculates to be about 8600 gallons, which means the Universal25 should have plenty of capacity for that size pool. You can adjust its output to meet your pool's needs, and you can see some more info about sizing here: https://www.discountsaltpool.com/What-Size-Salt-Pool-System-Is-Right-For-Me
Was this answer helpful?  4 of 6 Customer(s) found this Answer helpful.
Answer provided by: Nathan (3/22/2021)

Q: How to to disconet cable from cell for cleaning ?

Asked by: Arnaldo Soler - 10/3/2021
A: The cell cable unplugs from the face of the control panel. Open the control panel door, grip the cable firmly, and pull it away.
Was this answer helpful?  4 of 7 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (10/4/2021)

Q: Is this compatible with a 21,000 gallon above ground pools?

Asked by: Zac sellers - 5/6/2021
A: Depending on your climate and pool usage, it could potentially provide enough chlorine output. You would want to be sure, however, since you are closer to its max capacity. This is a little more detailed sizing information: https://www.discountsaltpool.com/What-Size-Salt-Pool-System-Is-Right-For-Me
Was this answer helpful?  2 of 5 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (5/6/2021)

Q: I am considering using this system t replace a Hayward Aqua Trol. they Hayward has a timer that turns my pump on and off automatically. Does this system have that capability?

Asked by: Steve D - 5/18/2021
A: No, there are not currently any other models that have a built-in analog timer like that. However, "Intermatic" style timers are commonly available locally, and that would be the same amount of work to use when doing the installation.
Was this answer helpful?  2 of 4 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (5/18/2021)

Q: I have a circu pool si Sisries that is wore out will this one replace it? My pool is 25,000 gallons

Asked by: Joe - 5/4/2021
A: This model will directly replace your older system. However, if your pool is that big, you may want to consider the next size up. You can see more about sizing recommendations here: https://www.discountsaltpool.com/What-Size-Salt-Pool-System-Is-Right-For-Me
Was this answer helpful?  1 of 3 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (5/4/2021)