Standard Water Chamber for S9 Series H5i Heated Humidifier

I did not order, nor did I receive a S9 water chamber.

I have used this reservoir for years. It needs to be replaced every 3 months like the review says. I use bottled drinking water from the grocery store and have no problem

I have been using this for years without any problems. I do use distilled water. I think user fail to realize that this needs to be replaced periodically. It is not permanent.