Countertop water filters are getting easy to use and install. The Aquasana AQ-4000 is one of the simplest, yet most effective counter top water filter devices available for home use. This water filter can be installed in your home in seconds. Connection is make at the faucet with a supplied adapter. Some countertop filters are the simple one stage like Britta, however we prefer the two stage countertop water filter by Aquasana. This filter has won the Consumer Digest Best Buy award many years in a row, plus recently it was approved by Underwriters Laboratories Inc. It also has been certified by the California Department of Public Health Services. The filter is made in the U.S.A. Read the rest of this entry »