INTENZA+ water filter cartridge for GAGGIA espresso machines. I tried to open and install it, but the shape didn't fit, and I realized I had purchased the wrong model. Therefore, it has been opened once, but it is unused. Since it has been opened, I cannot return it, and I would like to offer it to someone who needs it. Thank you very much. - Brand: BRITA - Model Name: INTENZA+ - Compatible Models: GAGGIA espresso machines - Function: Water filter cartridge - Contents: Filter cartridge and accessories Thank you for looking.