Serial and model numbers in picture provided from the side of the box as it appears the factory used the older boxes for the new 40s and slapped the new labels on the side with the bar codes. Thank you for supporting America by supporting American businesses such as mine???? The Pentair IntelliChlor Plus40 Salt Chlorine Generator Cell is a high-quality salt cell specifically designed for Pentair pool systems. The set includes full instructions and a control panel, making it easy to install and use. Made of durable plastic and metal, this white cell is designed for pools up to 40,000 gallons in size. With its innovative technology and reliability, the Pentair IntelliChlor Plus40 Salt Chlorine Generator Cell ensures clean and crystal-clear water for your pool.