How does the cost of a Ster-O-Tap water filter compare to buying bottled water?
Bottled water at most supermarkets costs approximately $1.00 or more per liter. If you replace your Ster-O-Tap water filters cartridge after 3000 liters, the cost of the great tasting and safe water from the Ster-O-Tap filter is less than $0.02 per liter! In other words, buying 3000 liters of bottled water at supermarkets would cost you at least $3000! A Ster-O-Tap water filter is more economical by comparison.