Aquasana AQ4500 Under Sink Water Filter
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Voted Consumers Digest Best Buy for six years in a row, the Aquasana AQ4500 under sink water filter features the same premium water filtration system as the AQ4000 counter top filter, plus everything you need to install it under your sink and out of sight.
The AQ4500 water filter provides up to 30 gallons of filtered water per hour - at a fraction of the cost of bottled water. Why pay more for bottled water when many brands are even more contaminated than tap water?
If you want to provide clean, healthy water for your family, then you have to filter your water at home.
Aquasana AQ4500 Under Sink Water Filter Features

- Powerful dual filtration system combines carbon filtration, ion exchange, and sub-micron filtration to produce the healthiest water available from your tap.
- Filters out over 100 common contaminants, including lead (99%), chlorine (99%), synthetic chemicals (99%), VOCs (99%), THMs (99%), benzene (99%), alachlor (99%), lidane (99%), atrizine (97%), MTBE (93%), turbidity, and paracystic cysts that are resistant to chlorine (99.99%).
- Leaves natural trace minerals in water for healthier, better-tasting water.
- Virtually no maintenance! Simply replace the filter cartridge after 6 months.
- Installs in minutes! May require a licensed plumber for installation, although installation is simple for the mechanically inclined.
- Third-party tested & certified by the California Department of Public Health Services.
- 100-day warranty against defects in materials and workmanship..
Aquasana AQ4500 Under Sink Water Filter Specifications
Placement: Under sink. Fits all standard kitchen sinks.
Filtration Technology: Multi-stage filtration: carbon, ion exchange, and sub-micron filtration.
Cost of Operation: Less than 9 cents per gallon!
Maintenance: Simply replace the AQ4025 filter cartridge every 6 months.
Water Production: Up to 30 gallons of filtered water per day.
Water Pressure Range: 20-50 psi
Flow Rate: 0.5 gpm
Dimensions: 9"H x 7"L x 4"W
Weight: 5 lbs
Meets NSF Standards: Yes, it exceeds National Sanitation Foundation standards.
Removes Chlorine: Yes
Tested & Certified: Yes, certified by the California Department of Health
Warranty: 100-day replacement warranty against defects in materials and workmanship.
What's Included with the Aquasana Under Sink Water Filter
- Sleek Filter Housing
- Chrome Faucet
- Twin Filter Cartridge Set (lasts 6 months)
- Under Sink Mounting Bracket
- Install Fittings
- Easy-to-Follow Instructions
- Free enrollment in our filter replacement reminder program!
Aquasana AQ4500 Water Filter Reviews
After I learned about all the chemicals associated with plastic containers, I stopped drinking from the water cooler at work. I brought my own water to work every day, usually in large glass mason jars. Sure, my co-workers thought it was a little strange, but I knew I was making the right choice - the healthy choice.
Then I saw an opportunity I couldn't resist. When our boss decided to renovate our office kitchen, I asked if we could have a water filter system installed under the kitchen sink. He was skeptical at first, but then I showed him how much money he'd be saving with the Aquasana system versus having jugs delivered for the old water cooler! Now the boss is happy, I'm happy, and even my co-workers are happy. The filtered water tastes so much better than "spring water" that's been sitting in a plastic jug in the back of hot delivery trucks for hours at a time.