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Title: Pro-Tec PC Humidifier Tank Cleaning Cartridge
Review: I have been using this product for couple months now to keep my Sunbeam (non-filtered) humidifier's interior clean and sanitized. The unit consists of a small ball containing soluble cleaning chemicals with a handle so you don't have to make contact with the active ingredients. So far, so good with no problems. Really cuts down my unit's scum and softens hard water impurities. However, it does require a new cartridge (ball) in the tank every month to function properly. Product came from Ace Hardware central shipping via Amazon (since local Ace here had run out of product) but it arrived promptly. I give it five stars.
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