For Marino, Vanto, Palatino
This is a genuine Caldera replacement part for their Vacanza series hot tubs. If you have a Caldera Marino, Vanto, or Palatino this is the correct cartridge for you.
It measures 8 1/2″ in Diameter and 10 1/2″ in length with a 2 3/4″ opening on both top and bottom.
We recommend changing your filter once a year. We also recommend you clean your hot tub filters once a month to keep your spa running optimally.