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Aquasana

Aquasana

Good7/10

US direct-to-consumer water filter brand known for under-sink and whole-house systems, owned by water-heater maker A. O. Smith.

Founded
1998
From
United States
HQ
Austin, United States
Owned by
A. O. Smith (2016)
Made in
Assembled in the United States (Texas)
www.aquasana.com

Water filter

Good7/10Mid-range

Aquasana is a solid US choice for under-sink and whole-house filtration with good certification. Reviewers find its systems effective and easy to install.

Good at

  • Well-certified under-sink systems
  • Whole-house systems with long filter life
  • Easy DIY installation

Weak at

  • Frequent sales make list prices misleading
  • Mostly US-only
Reliability
Value
Features
Service & warranty
Claryum under-sinkRhino whole-houseOptimH2O ROClean Water Machine

Best for: US homeowners wanting certified filtration they can install

nz (not sold)au (not sold)uk (not sold)ushk (not sold)

Researched September 2026 from public reviews, consumer groups and retailer listings, and summarised by hand — ratings are a judgement, not a lab score. Check current reviews and local retailers before you buy.