CircuPool Universal55 Salt Chlorine Generator
CircuPool Universal55 Saltwater Chlorinator System

CircuPool Universal55 Salt Chlorine Generator

Part Number: UL55
Availability: In Stock.
0 Add to Cart
Begin Checkout
CircuPool UL55 Complete Salt Pool System with 4-Year Limited Warranty, for up to 55,000 gallon pools
Power 2.9 lbs/day
Warranty 4 Year Limited*
Rated Lifespan 10000 Hours
Max Capacity 55000 Gallons

The CircuPool Universal Series is a top choice for value and convenience for backyard saltwater pools. Serving as an easy replacement for any size existing Hayward® AquaRite® unit, the Universal55 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!

Sporting 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 Universal55 is an outstanding choice for anyone looking to upgrade or just dive into a great new salt chlorinator.

The Universal55 will replace any size Hayward Aqua Rite systems with no cutting or gluing, making it a snap to upgrade your salt pool system! With a 55,000 gallon max rating, this adaptable system is able to handle replacement of an existing system with a range of 15,000 to 40,000 gallons!


  • 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.


General FAQ

Rating Snapshot

Select a row below to filter reviews.

Average Customer Ratings


Great salt system, like it more than aquarite
First of all I just want to say that this is my first time using a circu pool salt system, I've always dealt with pentiars or aqua rite. The system is very user-friendly in my opinion, even more than the Aqua Rite. All the instructions are right on the door, you can browse through different things by pressing a button and the lights tell you when something is working and when it's not so it can't be easier to read then that. The salt cell it's just as a Hayward Aqua Rite and the control panel resembles the aquarite as well but it actually has more options and more information than the Aqua Rite. Installation was a breeze and simple. The only thing that I found that's different from an Aqua Rite It's that low salt it's about 3000 and high is 4000, although it will still keep generating off to 2600 it works better if you keep your salt 3400 +. If you're coming from a Hayward Aqua Rite, this is the perfect replacement for it and with a 40000 gallon capacity salt cell, you can't beat the price. Last but not least the unions come with adapters for 1 and 1/2 in and two and a half which I thought was also great since he saves you the need to find a reducer if you have a two inch system.
Did you find this helpful?  29 of 32 Found Helpful
Reviewed by:  from Winter park on 7/13/2018
best thing I've ever done
I am fanatical about my pool, this is the best thing I have ever done for it. Excellent chlorinator. I even tested it, I stopped adding chlorine to my pool for a week before I installed it. Right when the pool measure zero chlorine and got a little cloudy, I started this chlorinator up and let it run on high. By the next day my chlorine level was too high! Now I run it for 6 hours a day on about 30%, and the pool stays perfect.
Did you find this helpful?  16 of 17 Found Helpful
Reviewed by:  (Verified Buyer)  from Norwalk, OH on 6/14/2016
new model better than old
I had an older version of this, and instead of replacing the cell I just bought this whole system instead because I got it on sale. I'm an engineer and I appreciated the updates they made to the product. I thought the cooling fan was a nice touch. Now I have my old one for parts, and this new one has my pool up and running again. It was a great system, and its even better now.
Did you find this helpful?  13 of 13 Found Helpful
Reviewed by:  (Verified Buyer)  from Fort Worth, TX on 2/8/2017
Unit works great!
Easy to install, easy to understand instructions and seems to be high quality. It included everything I needed in 2 sizes, 1.5 and 2 inches. Support was excellent as I had a high salt reading which was a breeze. I'd highly recommend this unit.
Did you find this helpful?  13 of 14 Found Helpful
Reviewed by:  from Upstate NY on 6/19/2021
I wouldn't have been easier and the price is amazing
I've been looking to replace my Hayward and up until now everything has been super expensive, the computer alone was over $1,000 so this is an awesome deal
Did you find this helpful?  11 of 13 Found Helpful
Reviewed by:  from Akron, NY on 7/1/2021
There are no reviews yet
Questions From Customers

Q: Will this unit work for above ground pools. My pool is 33' round with 54" walls

Asked by: Lightn - 2/8/2022
A: This model is commonly used with above ground pools. That size pool would work out to be about 29,000 gallons, the Universal55 would likely be a great choice to ensure that you have plenty of capacity. This model comes with both 2" and 1.5" pvc unions. Give us a call if you have more questions, happy to help go over your pool setup in more detail: 866-766-5243
Was this answer helpful?  2 of 2 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (2/8/2022)

Q: Can the generator be too big for the size of the pool?

Asked by: Goody - 2/23/2023
A: Within reason, the answer is typically no. Rather, having higher capacity is a major benefit, making it easier to keep the water blue and giving more long term value. You can see more sizing information here:
Was this answer helpful?  2 of 3 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (2/27/2023)

Q: What is the max amp draw at 110V?

Asked by: Steven - 3/9/2022
A: It is rated for 2A at 120V
Was this answer helpful?  0 of 1 Customer(s) found this Answer helpful.
Answer provided by: Andrew (3/10/2022)

Q: How much return line space is needed for the Universal 55 flow switch and cell?

Asked by: Lynn - 4/20/2022
A: You would want at least 16-20" of space all together. Alternatively, you can reduce how much space it takes down to about 8" by using this installation kit:
Was this answer helpful?  0 of 1 Customer(s) found this Answer helpful.
Answer provided by: Discount Salt Pool (4/20/2022)

Q: What is the maximum gpm for this SWG?

Asked by: Mfinlay04 - 7/6/2022
A: This does not have a max gpm requirement listed.
Was this answer helpful?  0 of 1 Customer(s) found this Answer helpful.
Answer provided by: Stephen (7/6/2022)

Q: Can this unit be plugged in to an existing Hayward Power Center for the T-15 Cell?

Asked by: Matt - 7/22/2023
A: This is a complete chlorine generator system, the salt cell and the power center. It would replace an existing t15 cell in the plumbing without modification, and its power center should typically get wired up the same way as the old one getting replaced. It would not work correctly to hook components of different brands together as you mention.
Was this answer helpful?  0 of 0 Customer(s) found this Answer helpful.
Answer provided by: Rick (7/24/2023)

Q: Can this be an initial install and not a replacement of an existing chlorinator? DYI of course.

Asked by: brian davidson - 1/2/2024
A: Yes, this model is also perfectly fine to be used for the initial install of a salt chlorine generator on a pool system.
Was this answer helpful?  0 of 0 Customer(s) found this Answer helpful.
Answer provided by: Nathan (1/2/2024)

Chlorine Output:

2.9 lbs /day

Manufacturer Warranty:

4 Years Limited*

Manufacturer Rated Lifespan

10,000 hours

Manufacturer Max Capacity:

55,000 gallons


Digital - LCD Screen, LED Indicators

Salinity Range:

3000-4500 ppm

Salinity Test:

Yes - High, Low, Displays ppm


Yes, Reverse Polarity

Warranty Penalty for Self-Install:


Clear Cell:


Boost Mode:

Yes, 24 hours

Winter Mode:


Flow Sensor:

Yes, Independent Flow Switch

O-Rings Included:


Unions Included:


Union Size:

1.5" & 2”

Power Cord Length:


Cell Cord Length:


Cable Connection Type:



22 lbs

Rated Amperage (120V/240V):

1.5A / 2A

Weather / UV-Resistance:

Designed for Outdoor Installation and Operation

The CircuPool Universal55 controls feature a steel sheet-metal box with hinged and latching door, similar to the panel on a circuit breaker. Thanks to the keyholes on the control box, it’s easily mounted to a nearby wall, post, or support with the help of a few basic screws secured to the wall or other support.

Inside the Control Center door, there’s a small LCD screen that displays average salinity readings, temperature, cell voltage, cell current, your chosen chlorine output percentage, instantaneous salinity, and different cell type settings.

These controls have a dial that can be used to raise or lower the chlorine output, and a three-position switch to activate or deactivate the system, or activate the super chlorination mode.

The electrolytic cell for the Universal55 is housed in opaque-plastic and contains built-in titanium electrode plates and a built-in power supply cord.

The housing also features matching threaded connections on the inlet and outlet which fit the Hayward Aqua Rite for easy, direct conversion and quick access for maintenance, cleaning, or seasonal removal.

These threaded connections attach to 2” and 1.5” unions, which can be glued to the existing PVC return-line plumbing.

The CircuPool Universal55 includes two 2" Threaded Unions, two 1.5" Threaded Unions, Flow Switch, 1.5" Flow Switch adapters, and Instruction Manual.
Manufacturer 4 Year Limited Warranty for residential use. Most manufacturer chlorine generator warranties are pro-rated. All warranties offered are provided by the relative manufacturer and are limited to the terms and proration they provide. See manufacturer's documentation for a full description of warranty terms and conditions.