Aquasana Water Filters Review: Whole House Ambition, Selective Excellence

Aquasana Water Filters Lineup: 5 Records Across 4 Classes

The lineup is 5 records and it splits 4 ways. Two are under sink systems, one is a faucet mount, one is a whole house tank, and the fifth is the cartridge the 2 under sink bodies run on. Nothing here is a pitcher, which already puts this badge in a different part of the aisle from most of the brands on this site. It also means the range is less a family than a catalog, and the parts don't swap between the ends.

The same selective chemistry sits behind every one of them. Catalytic carbon handles the chlorine and the taste, ion exchange resin pulls the lead and the mercury, and there's no membrane anywhere in the line. That's why the calcium and magnesium stay in the glass instead of going down the drain with the contaminants. One recipe, then, on the $225 body and on the $1,085 tank alike.

Four classes, one recipe, and the records split on what they print.

• Certification: WQA certified to NSF/ANSI 42, 53 and 401 on the headline record, with a 78 line reduction list and a percentage beside each name. P473 sits inside the 53 listing, which is how PFOA and PFOS get named at all.
• Four classes: under sink, faucet mount, whole house and replacement, all sold under one badge out of one catalog.
• Rated capacity: 800 gallons on the drinking water cartridge, 784 gallons at the spout, and 600,000 gallons on the whole house record. One of the 2 under sink bodies prints no figure at all.
• Published flow: 0.72 gpm on the Max Flow body, about a gallon in under 90 seconds, and the line says it's 44 percent faster than the standard 3 stage.
• Money, in bands: $225 to $230 for either under sink body, $125 to $130 at the spout, $1,080 to $1,090 for the house wide unit, and $90 to $95 for the replacement part.
• Not published anywhere: a listing number a reader can key into a registry, or a precise micron rating for the Claryum blocks. One under sink body also leaves its capacity blank.

What that adds up to at your tap: a second faucet and the certification naming 78 things by number at the cheap end, and a tank treating every gallon in the house for about a fifth of a cent at the dear end.

Aquasana Water Filters Review: 4 of 7 for the Headline System

Every product in this index is rated 1 to 7 across seven verifiable criteria. One point per criterion. No partial credit. The table below is the whole scoring rule in one place, and a record scores on what it publishes rather than on branding or design language.

A brand page carries its strongest record's scorecard rather than an average. Here that record is the Claryum under sink body. Its 3 zeros are the trade the whole line makes, and 2 of them are arithmetic rather than water. The full argument sits on that page, and the table below is copied from it.

One line sits at zero on documentation, and it's the line every record here carries. The standards, the 78 names and the capacity are all published. Then the record stops short of a number a reader can key into a registry. The maker's own cartridge page takes the same hit, and scoring 2 products by different standards would make both scores worthless.

The other 2 zeros are the price of that sheet. The rated figure lands near 12 cents, the highest across the under sink category, and the install wants a counter opening plus about 16 inches of cabinet height. This system doesn't lose points for the water it makes. It loses them for what the documents add to the bill.

Who the Aquasana Water Filters Fit, and Who They Don't

The question is never which filter is best. It's which one matches your tap and the contaminant you named before you started shopping. This line answers the certification question well and the budget question badly. Pick your side, then read the running cost.

The container is the number to shop on, because the recipe doesn't change with the size. 784 gallons at the spout, 800 under the sink, and 600,000 at the main line. Four records, 3 different jobs, and one of them leaves the capacity blank. The whole house roundup is where the tank earns its keep, and the under sink roundup is where the pair is judged.

• The PFAS household: PFOA and PFOS appear by name, carrying a percentage each, inside a certification rather than a slogan.
• The lead and old plumbing household: lead is certified at 99.6 percent, and the ion exchange stage is doing that work rather than the carbon.
• The mineral keeper: calcium, potassium and magnesium stay in the glass, so the water keeps its body instead of tasting like nothing.
• The whole house buyer: the point of entry unit treats the shower, the laundry and every faucet from one decision, and the whole house filter rankings hold it against the rest of that class.
• The two tap kitchen: filtered water arrives from its own faucet on the Claryum system, so the main tap keeps full pressure for washing up.

What the Aquasana Water Filters Get Right

The strength of this line is the certification record and the selective media, and the weakness is the documentation and the calendar. Every record wears the same badge and runs the same recipe. What changes is how much water you drink and how much you will pay for the sheet that backs it. There are 4 classes in the line, and 2 of the records are still waiting on a page.

What Aquasana Water Filters Cost per Gallon

Every figure below is a band, because retail prices move. The only honest way to compare these parts is the cartridge divided by the gallons it's rated for, and this is the record that makes that division sting. A cartridge that costs $88 to $95 looks modest next to a $225 body. Divided by the gallons it actually delivers, it isn't.

• The under sink cartridge: $88 to $95 against a rated 800 gallons, which is about 11 to 12 cents on the gallon.
• The same part on the clock: 2 cartridges a year at that band is about $176 to $190, which lands near 50 cents a gallon at a household pace. Roughly 4 times the rated figure.
• The faucet filter: $125 to $130 for the body, drawing 784 gallons on the cartridge that ships with it.
• The house wide unit: About $1,085 treating 600,000 gallons works out to about a fifth of a cent a gallon, the cheapest gallon in the line by a wide margin.
• The annual reality: a gallon a day is 365 gallons a year, which is about 2 cartridges on the 6 month clock, or roughly $176 behind a body that cost $225.

Here is what the listing leaves out: The rated figure and the clock figure are about 4 times apart, and only one of them shows up on the box. That gap isn't a rounding error, and it isn't a trick either. It is what a 6 month tag does to an 800 gallon rating, and every maker in this aisle runs the same play.

The replacement part is where the running cost lives, and the band moves with it.

Aquasana Water Filters Review: The 5 Records Side by Side

Every row below is a record from our own catalog. The standards and the capacity come from the documentation rather than a maker's chart. 3 of the 5 rows are still waiting for the page that scores them. The points column carries each part's own page score where one exists, and the rest are honest blanks.

Two things fall out of that table. The standards travel down the line and the capacity doesn't. A buyer reads the same 3 digits on a $90 part and on a $1,090 tank. The Culligan lineup answers a similar question with 2 chemistries rather than one, and the APEC reverse osmosis line is where the total dissolved solids argument lives instead.

It's also worth reading this list beside a ZeroWater lineup, which is the mirror image. There the capacity shrinks and the removal widens. iSpring covers both ends of the house the way this line does, and it prints a capacity on 3 of its 7 records.

Four classes, one recipe, and 3 rows still waiting for a page.

The record that carries this lineup's scorecard, and the one that sets the 12 cent figure.

Aquasana Water Filters Review FAQ

Is Aquasana certified or just advertised?

Certified, and the difference is written down. The headline record carries WQA certification across standards 42, 53 and 401, with the reduction figures written out for the 78. What's missing is the listing number, and that absent document is what costs the record a point.

Does the Claryum filter remove fluoride or TDS?

Neither, and the design is the reason. Claryum is carbon plus ion exchange, so it pulls lead and mercury while leaving the dissolved minerals in the glass. A low TDS reading is a reverse osmosis purchase, and that's a different machine entirely.

How often does an Aquasana cartridge need changing?

Aquasana states 800 gallons or 6 months, and the clock arrives first for most households. At 30 gallons a month you use about 182 gallons in 6 months, under a quarter of the rating, and the instruction is still to swap the part. Budget 2 a year.

Does Aquasana sell a whole house system?

Yes, the Rhino WH-1000, and it's a different machine from the drinking water line. It's a carbon tank rated 600,000 gallons at the main line, priced near $1,085, and it treats the shower and the laundry as well as the tap. The whole house roundup holds it against that class.

Which Aquasana record should a first buyer pick?

It depends on the job, and the line splits cleanly. A household chasing lead or PFAS at one tap wants the under sink system and its 78 name list. A renter or a small kitchen wants the faucet filter at $125 to $130. A house chasing scale and chlorine everywhere wants the tank.

Aquasana Water Filters Review: Where the Lineup Lands

The line sorts into one recipe and 4 jobs. The same selective media sits in a spout filter, an under sink body and a house wide unit. What the badge decides is the size of the job, not the quality of the water. Every record here leaves the minerals in, and every record here prices the gallon by its own clock.

The pick is the Max Flow system. It carries the widest certification here, the 78 name list, and the fastest published flow in the line. It also carries the highest per gallon figure. That's the trade a household makes for a list it can check.

Start with the contaminant you can name, then let the per gallon figure pick. If lead or PFAS is the reason you're reading, the Claryum record is the most defensible system here. The running cost is the price of that certainty. If you want every tap at once, the tank does that for about 0.2 cents a gallon.

Widest certificate in the line, highest bill at one tap, and both figures are published.

Every Standard the Aquasana Water Filters Name

NSF/ANSI 42

The aesthetic effects standard, covering chlorine, taste and odor. A filter with 42 alone changes how water tastes. It does nothing about the health list.

NSF/ANSI 53

The health effects standard, certified per listing, covering lead, chromium, mercury and named compounds. This is where the 78 name list lives. PFOA and PFOS sit inside it.

NSF/ANSI 401

Emerging compounds, a separate listing from the health standard, covering certain pharmaceuticals and flame retardants. The headline record names it.

NSF/ANSI P473

The PFAS protocol, folded inside standard 53 rather than run as a standalone listing. It's why PFOA and PFOS can be named at all.

Claryum

The maker's own name for the selective media: catalytic carbon plus ion exchange resin. It pulls the heavy metals and leaves the minerals behind. That's the whole difference between this and a membrane.

Ion exchange

A resin that swaps unwanted ions in your water for ones it would rather release. It's why this line can take lead without stripping everything else.

Total dissolved solids

Everything dissolved in water that is not water: minerals, salts, metals and ions. The selective media here barely moves it. That's the point of the design.

Rated capacity

The volume a cartridge filters before performance is no longer certified, in gallons. Here it runs 784 to 800 on the drinking water records. The whole house tank runs 600,000 at the entry point.

Keep Reading: More Aquasana Water Filters

• Aquasana AQ-5300+ Water Filter Review: the record this page carries, row for row, and the full reduction list.
• Aquasana AQ-5300+R Replacement Filter Review: the cartridge behind the scorecard, and the 6 month interval in detail.
• Best Under Sink Water Filters: the parent roundup, every system in that class scored the same way.
• Best Water Filters: the pillar, 136 records across 12 classes and one scoring rule.