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The CircuPool SJ-20 saltwater chlorine generator provides simple worry-free operation and industry-leading value. Circupool SJ-20 units work with existing pump and filtration systems to reliably supply swimming pools with pure chlorine every day. The CircuPool SJ-20 works at a low salt level and creates a silky soft feeling in pool water to provide the ultimate swimming experience. Max capacity: 20,000 gallons.
Available DIY Adapter Kit for Hayward or Pentair models allows for a simple and quick conversion from Aqua Rite or IntelliChlor models.
The complete 2nd-Generation CircuPool SJ-20 salt chlorine generator system has three main components: the Control Module, the Electrolytic Cell, and the Flow Switch, along with its miscellaneous hardware, cleaning tool, and documentation.
USA Titanium Cell, with a leading 3-Year Limited Warranty.
Simple, reliable, and proven. Monitors performance and system status, while operating on the widest salinity range available.
Incredibly easy maintenance! No acid is necessary for cleaning the cell.
Select a row below to filter reviews.
0.8 lbs /day
3 Years Limited*
Manufacturer Rated Lifespan
Manufacturer Max Capacity:
Digital - LED Indicators
3500+ ppm (No Maximum)
Yes - Low (No Maximum)
Yes, Reverse Polarity
Warranty Penalty for Self-Install:
Yes, 24 hours
Yes, Independent Flow Switch
1.5" & 2”
Power Cord Length:
Cell Cord Length:
Cable Connection Type:
Rated Amperage (120V/240V):
0.833A / 0.416A
Weather / UV-Resistance:
Designed for Outdoor Installation and Operation
The CircuPool SJ-20 system is controlled by the Control Module. Featuring a convenient medium size, molded-plastic exterior with a touch keypad and LED indicators to monitor settings and performance.
The control module mounts conveniently on most walls, posts, or supports. Just follow the accompanying instructions and mounting template for screw placements and installation.
The digital LED indicators on your control module will communicate whether or not your system is operating at optimum performance levels, and will otherwise alert you with its LED indicators for potential service issues such as: the pool's salt level is low, the cell needs cleaning, there is insufficient water flow, or it the water has reached winter temperatures. Keypad controls will also give you the ability to increase or decrease chlorine output, or activate a boost (or SuperCL) mode.
For the cell component of your CircuPool SJ-20 unit, it comes equipped with an SJ-20 electrolytic cell in a clear, raised housing. This contains a set of titanium electrode plates that can be removed, as well as a built-in power supply cord.
Thanks to its unique design, the SJ-20 has a reduced need for cleaning mineral deposits that may occur, which makes it one of the few systems that do not require acid for cell cleaning. You can easily remove the mineral deposits with the cleaning wand included in your system’s kit!
This cell also features threaded connections near the head of the cell, so you can quickly access the titanium plates whenever you need to service them, or if you need to take them out for winter. The cell comes with both 2” and 1.5” unions to easily connect to existing return-line PVC plumbing. The clear housing on the cell makes it easy to inspect for both cleaning and function purposes!
What you need to know in 60 seconds!