The eSpring Water Purifier II features advanced water purification technology, providing safe water for your home. - Brand: eSpring - Model Name: Water Purifier II - Included Items: Instruction manual, connection parts, power adapter - Condition: Used for approximately 11 months (opened) Thank you for viewing. While there is some evidence of use, it works without any problems. The cartridge has about 1/4 of its life remaining. I don't know the manufacturing date, but I purchased it about 9 years ago.