Product Description
Katadyn Vario Microfilter, The only water filter adjustable for different conditions. Combines the two best technologies ceramic and pleated microfiltration. Ultra fast flow (2 liters/minute). Replaceable carbon so water always tastes fresh. Microfiltration Method: Cleanable ceramic disc lengthens life of primary microfilter. 0.3 Micron high surface area pleated glassfiber microfilter removes waterborne bacteria and cysts. Replaceable carbon core reduces chemicals, pesticides and bad taste in water. Output: Up to 2 quart (2 liter)/minute Cartridge Capacity: Up to 500 gallons (1875 liters), depending on water quality Weight: 15 oz Height: 6.5" Includes: Prefilter, Deluxe Carry Bag and Cleaning Pad, Mfg No: 8014931, Manufacturer: Katadyn

Amazon.com Product Description
A member of Katadyn's Backcountry Series of water filters, the Vario Multi Flow Water Microfilter is the first water filter that is adjustable for different conditions. It combines two leading technologies into one high-performance pump: ceramic for a longer life and pleated glass fiber for easy operation. The Vario offers a high output and also contains a replaceable carbon core to keep the water tasting fresh.

Key Details:

• Output: Up to 2 quarts (2 liters) per minute
• Cartridge Capacity: Up to 500 gallons (1875 liters)
• Weight: 15 ounces
• Height: 6.5 inches
• Hose Length: 36 inches
• Includes prefilter, cleaning pad, and deluxe carry bag

About Katadyn
Katadyn of Switzerland has been producing high quality portable water systems since 1928. Their history has been one of innovation and durability. Katadyn products are used by militaries, health organizations and outdoor adventurers world-wide. No other water system provides higher quality or longer lasting performance. Katadyn is the global leader in portable water treatment. With subsidiaries in the United States, Germany, France, and Singapore; Katadyn develops, produces, and distributes high quality products which are used whenever safe drinking water isn't available--for travel, camping and humanitarian operations.

From Backpackgeartest.org
The Katadyn Vario Microfilter is part of the backcountry series filter line. The manufacturer indicates this filter line is good for all round use. The manufacturer claims that this filter meets the industry standards for reduction of bacteria (99.9999% Klebsiella terrigena) and protozoan cysts (99.9 % Giardia and Cryptosporidium)...read the entire review