The Aquasana AQ-4000 is truly a wonderful home water filter. Although Aquasana sells many different water filtration products, the AQ-4000 can be considered the filter that the company is known for (besides their shower water filter). So what makes this particular water filter so great? Well, theres quite a few different reasons for this filters great reputation. Lets take a closer look.

Save 20% on the AQ-4000 at Aquasana.com

Filter Overview

This counter top filter does an absolutely exceptional job at filtering out impurities from your tap water. In fact, its filtration method eliminates the highest amount of substances from water in comparison to all other similar carbon filtration units. The company believes that there are no safe levels of contaminants for drinking water. While some companies produce filtration products that allow for acceptable levels of contaminants to pass through their filters, Aquasana designs their filters to get rid of virtually all impurities.

In addition to carbon filtration, the AQ-4000 utilizes ion-exchange and sub-micron filtration to produce very clean, great tasting water. This filtering method is a two step process. Each filter housing contains two different cartridges.

Cartridge A

  • Filters Sediment and Turbidity
  • Filters Chlorine
  • Greatly Reduces Odor
  • Removes Microscopic Particles
  • Improves Taste

Cartridge B

  • Filters Lead exchanges lead with Potassium
  • Maintains Healthy pH levels
  • Filters Synthetic Chemicals herbicides, pesticides, and industrial solvents
  • Contains a .5 micron filter which eliminates cysts

Product Specs and Performance

  • Product Dimensions 12x7x4
  • Product Weight 3 lbs
  • Max Flow Rate 0.4 gallons per minute
  • Capacity of Filter Cartridge 500 gallons
  • Minimum Operating Pressure 20 pounds per square inch
  • Maximum Operating Pressure 50 pounds per square inch
  • Minimum Operating Temperature 40 Degrees Fahrenheit
  • Maximum Operating Temperature 90 Degrees Fahrenheit

This superior water filter is known for its excellent filtration performance. The number of water contaminants that it removes exceeds more than forty. Some of the more common impurities removed include;

  • Chlorine
  • Lead
  • Cysts
  • Chlorination by-products
  • Volatile Organic Compounds
  • Gasoline Additives

The California Department of Health have tested Aquasana products which have met or exceeded NSF standards 42 and 53. Their products have also been tested and certified by the Underwriters Laboratories.

Three Different Units To Choose From

The AQ-4000 comes in three different colors. You can choose from white, black, or brushed silver. The fanciest version is the silver one because it comes with a special paddle-shaped water diverter. This option is now the same price as the white or black one. These color options will make it that much easier for you to find a counter top filter that will match up with your kitchens decor.
aquasana aq-4000 black

Awards and Praise

Aquasana water filters have been awarded Americas Healthiest Water Filter by Health Magazine. This is an exceptionally notable mention by this well-respected magazine. Its been mentioned before, but it is worth repeating that Aquasana was also given the best buy award from Consumers Digest for an incredible six years in a row. The New York times has also recently praised the companys filters as part of an overall home detox.

As you can see, the Aquasana AQ-4000 water filter represents an exceptional value in home water filtration, especially when you take into account an Aquasana coupon. Its considered the best water filter by many, so its an easy choice for someone looking for clean, inexpensive water from the comfort of home.