This is a Pentair IntelliChlor 521151 US Primary Commercial Cell for IntelliChlor Model CIC60P Electronic Chlorine Generators. Purchase of a COMSYS-System may be required if this is a new start-up system for you.
The cell has an automatic shut-off feature that protects the unit and prolongs cell life under low water/low temperature conditions. Other features include coated blades and include built-in intelligence. You can choose from 2 lb./day chlorination output (1 Cell) all the way up to 16 pounds (8 Cells).