The JRIV has four solid electrode plates, which reduces the energy consumption. Due to the lower power consumption and fewer plates, this machine is considered one of Enagic's "starter" models. If you're looking for an Enagic machine that generates all 5 types of water, this model is a good entry level choice, and you can always upgrade to the flagship K8 model in the future! Families should consider one of the more robust models (SD501 or Super501) that can produce an ample supply of all 5 types of Enagic waters for everyday hydration, cleaning, and personal hygiene.