The 7 inch Filter vs. the 9 inch Filter

We are often asked, what is the difference between the 7 inch filter and the 9 inch filter? Let's take a moment and refresh our product's history for the benefit of those who are not familiar with the British Berkefeld Water Filtration systems. We offer the Big Berkey which comes with (4) 9 inch Supersterasyl filters, and the SS4X4 which includes (4) 7 inch Supersterasyl filters.

Supersterasyl
The Sterasyl® grade filter is designed to remove suspended solids and pathogenic bacteria. Both the Big Berkey and the SS4X4 filters were produced using the latest ceramic techniques to provide a hollow porous ceramic which is fired at a temperature in excess of 10000C. They are designed to operate with water flow going from the outside to inside of the element.

The 3 layer composition of the Sterasyl® filter contains diatomaceous earth, granular activated carbon and pure silver. This silver is a specially formulated self-sterilizing (bacteriostatic) agent. The result is that bacterial growth is prevented from occurring within the Sterasyl® filter element. More importantly, bacterial “grow-through” is eliminated. This silver content is about 0.07%, which is well within the allowable levels recommended by the World Health Organization and the E.P.A. Because of the silver, Sterasyl® filter elements do not require sterilization after cleaning.

The 2 inch Advantage?
The British Berkefeld water systems consists of 2 stainless steel canisters. The top canister where the filters are housed, is 10 inches in height. The bottom canister used to catch the filtered water, is also 10 inches in height. These 2 canisters are stacked together based on gravity feed. Due to spillage, often times the top canister is not filled to it's maximum level capacity. Therefore, the top of the 9 inch filter does not work as much compared to it's lower sections.

Is Big better?
The Big Berkey and the SS4X4 uses the same exact stainless steel canisters in terms of quality, diameter and height. Both the 7 inch and the 9 inch filters have the same performance and construction. They both render identical filtration capabilities. Both have the same orifice size which ultimately determines the yield of filtered water in gallons per hour.

Unanimous Decision
For the price difference, the 7 inch filter is a sure winner. The SS4X4 with the (4) 7 inch filters is priced around $304, while the Big Berkey with the (4) 9 inch filters go for $324.

You can enjoy virtually the Most Delicious, Freshest, Healthiest drinking water possible! Place your order today and select 'Shipping Included in Price' when checking out.

Join Our Mailing List Today!

Online and Faxed Orders are taken 24 hours a day, 7 days a week:

To place your order through the Internet, please select the product/s and add to the shopping basket.
Fax us your completed Order Form at 1(972) 937-6385