Aquasana AQ-5300+
Aquasana
The best balance of NSF/ANSI 401 reduction and everyday usability. Aquasana's 3-stage Claryum system holds an active 401 listing (plus 42, 53, and 372) and targets the emerging-contaminant list — pharmaceuticals, pesticides, and herbicides — without the wastewater of reverse osmosis, while keeping beneficial minerals in the water.
Our Review
NSF/ANSI 401 is the emerging-contaminant standard, and the Aquasana AQ-5300+ is the pick that delivers it most sensibly for everyday use. Its Claryum record holds an active 401 listing alongside 42, 53, and 372, so its claims against pharmaceuticals, pesticides, and herbicides are cross-checked rather than asserted. The big practical advantage over RO is that it reaches this reduction without sending water to a drain and without stripping calcium and magnesium, so the water still tastes like water. The honest trade-offs are a $130/year filter cost and the fact that, like all carbon systems, it does not reduce fluoride — for that you need one of the RO picks. As broad, verified 401 coverage that installs in an afternoon and keeps minerals, it is the best overall.
Pros
- +Active NSF/ANSI 401 listing for emerging contaminants
- +Also certified to 42, 53, and 372 — broad verified coverage
- +Reduces emerging contaminants without RO wastewater
- +Keeps beneficial minerals instead of stripping them
Cons
- -Higher annual filter cost than a basic carbon filter ($130/yr)
- -Does not reduce fluoride (RO is needed for that)
- -Lower rating on a deep review base than some picks
- -Installation needs light plumbing under the sink
Specifications
Stages
3-stage
Flow Rate
0.5 GPM
Filter Life
6 months
Annual Filter Cost
$130/year
Warranty
2 years
Dimensions
12 x 4 x 12 inches