Aquasana AQ-5200.55 2-Stage Under-Sink Water Filter

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Product guide

Aquasana AQ-5200.55 2-Stage Under-Sink Water Filter

Aquasana AQ-5200.55 is a 2-stage under-sink Claryum water filter system supplied with a separate faucet. The listing claims reduction of several contaminants while retaining some naturally occurring minerals, but it also says the system does not reduce TDS. Its listed filter capacity is 500 gallons, with replacement recommended at six months.

At a glance

Manufacturer claims reduction of up to 99% of 78 contaminants, including lead, PFOA and PFOS, chlorine and pesticides.
The listing says filtration retains minerals such as calcium, potassium and magnesium, and does not reduce TDS.
The claimed flow rate is 0.5 gallons per minute. Listed capacity is 500 gallons or six months, whichever comes first according to the stated replacement interval.
Filter cartridges are described as twist-off replacements that do not require disconnecting hoses or water lines.
Requires 12 inches of under-sink space plus clearance.

Price

$95.62Save 15%

Reference price: ~~$112.49~~

Price checked: Nov 14, 2026

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Often bought together

Aquasana Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration

$224.99

Pros and cons

Pros

Non-electric operation avoids adding an electrical connection under the sink.
A separate included faucet and installation parts are listed, rather than a filter that depends on connecting to the existing faucet.
The twist-off replacement design is intended to simplify filter changes.

Cons

The system does not reduce total dissolved solids, so it is not suited to buyers seeking TDS reduction.
The stated 500-gallon capacity and six-month replacement interval mean recurring filter replacement is part of ownership.

Technical specifications

14 specifications

Identity and operation
Brand	Aquasana
Model	2-Stage Under Sink Water Filter System - Kitchen Counter Claryum Filtration - Filters 99% Of Chlorine
Power configuration	Non Electric
Installation type	Under Sink
Filtration method listed	Sedimentation

Capacity and flow
Capacity	500 gallons
Filter life cycle	6 months
Maximum flow rate	0.5 gpm
Maximum supported TDS	300

Dimensions and installation
Dimensions listed	8.25"L x 4.25"W x 9"H
Weight listed	22.68 g

Materials and operating limits
Material listed	metal
Lower temperature range	40 °F
Upper temperature rating	90 °F

What to know before buying

Listing details to confirm

Listing details are inconsistent: the filtration method is called “Sedimentation,” while the Claryum descriptions cite activated carbon, catalytic carbon and ion exchange. Capacity is stated as 500 gallons in the principal features and details, but a separate description claims 600 gallons with a sediment pre-filter. The description also varies on whether certification includes P473. Confirm the configuration and performance data for the selected AQ-5200.55 listing before relying on a specific filtration method, capacity or certification. Customer feedback also reports leakage and housing durability concerns, while flow experiences are mixed.

What’s in the box

Included

Filter housing
Filters
Faucet
3/8 inch tee
Tubing

Who is it for?

A good fit for

Households seeking an under-sink filter with a separate faucet and no electrical power.
Buyers who want the listing's stated contaminant-reduction claims while retaining naturally occurring minerals.
People with enough cabinet space for the system and its stated installation clearance.

Less suited to

Anyone who needs a filter that reduces TDS.
Buyers who cannot accommodate 12 inches of under-sink space plus clearance.
Anyone who requires a settled capacity or certification claim without checking the listing discrepancy first.

Aquasana AQ-5200.55 2-Stage Under-Sink Water Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 2,540 ratings

5 stars68%68%
4 stars13%13%
3 stars6%6%
2 stars2%2%
1 star11%11%

Customer feedback describes favorable experiences with installation, replacement, perceived filtration and taste, but also reports leakage, including at a filter O-ring, and plastic housing durability problems. Flow and value opinions are mixed. These reports matter for a system intended for regular drinking-water use: the listed flow rate is 0.5 gpm, but it does not ensure every household will experience that flow. The listing itself gives conflicting capacity claims, so feedback does not resolve which capacity applies.

Positive themes

Customers report that installation and filter replacement are easy.
Customers describe improved taste and effective impurity filtration.

Negative themes

Customer feedback reports leakage, including around a filter O-ring.
Some customers report plastic housing cracking after several years of use.

Mixed feedback

Reported water flow ranges from adequate to very low.
Opinions about value for money differ.

Frequently asked questions

Does the AQ-5200.55 reduce TDS?

No. The listing explicitly says the system will not reduce total dissolved solids.

How often are the filters replaced?

The main product details give a six-month filter life and 500-gallon capacity. A separate description claims 600 gallons with a sediment pre-filter, so confirm which capacity applies to the selected listing.

What space is needed under the sink?

The listing says the system requires 12 inches of under-sink space plus clearance. The listed product dimensions are 8.25 inches long, 4.25 inches wide and 9 inches high.

What is included?

The listed components are the filter housing, filters, faucet, 3/8 inch tee and tubing.