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AquaTru Carafe Countertop Reverse Osmosis Water Purifier with Glass Carafe AT100
Water Filters

AquaTru Carafe (AT100)

#1 · Best Overall
8.3 /10 Our score
Lowest verified price $337.50 Amazon
Our verdict
The best-documented countertop RO we found. It has certification that names its models, strong independent test results and a glass carafe. Daily convenience is its weak spot.

Pros

  • Certified to NSF/ANSI 42, 53, 58, 372 and 401, including PFOA/PFOS
  • Purified water touches only glass
  • WaterFilterGuru's top-scoring countertop RO
  • Lowest price among certified units
  • Optional mineral filter adds minerals back

Cons

  • Small capacity means several refill cycles a day
  • Filters rated for 600 gallons, so cost per gallon is higher than the Classic
  • Owners report some failures, leaks and weak support

Disclosure: We may earn a commission when you purchase through links on this page. This does not affect our editorial rankings.

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Last reviewed November 6, 2026
Review

What to know about AquaTru Carafe (AT100)

A compact version of AquaTru's RO system that fills a removable 64 oz glass carafe you can pour from or refrigerate. It carries the same IAPMO certification to NSF/ANSI 42/53/58/401, including PFOA/PFOS. It was WaterFilterGuru's top-scoring countertop RO (9.57). Best for people who want glass contact and certified PFAS reduction at a lower price.
Editorial notes

Why it stands out

Why we like it

AquaTru's data sheet lists models AT100 to AT140 as IAPMO R&T certified to NSF/ANSI 42, 53, 58, 372 and 401, with PFOA and PFOS covered under standard 53. The data sheet reports an average PFOA/PFOS reduction of about 99% over 300 gallons.

Independent testing backs this up. WaterFilterGuru scored it 9.57, its top countertop RO result. Its Tap Score panel found 100% removal of uranium, fluoride, copper and chloroform. Purified water sits only in glass, and the filter housing is BPA- and BPS-free Tritan.

What to know

Skip it if you refill often or have a large household. The 8-cup batch takes about 16.5 minutes, and the carafe is lightweight when empty.
Performance

Score breakdown

PFAS reduction evidence

Strength of proof that the system cuts PFAS: a current NSF/ANSI 53/58 PFOA/PFOS or total-PFAS certification (NSF, WQA or IAPMO) and/or independent lab results (TechGearLab/Tap Score, Quality Water Lab). Certified plus lab-verified scores highest; marketing-only claims score lowest.

9.5
Its data sheet names the exact models (AT100–AT140) under IAPMO's NSF/ANSI 53 PFOA/PFOS certification, with about 99% average reduction.
Other contaminant coverage

Certified or lab-verified reduction of lead, chlorine/chloramine, VOCs, pharmaceuticals (NSF 401), microplastics, and for RO, TDS, fluoride, nitrate and arsenic.

8.8
Certified to 42/53/58/401, plus an independent Tap Score panel showing 100% removal of 8 of 10 detected contaminants.
Value

Upfront price plus annual filter cost per gallon, judged against the protection delivered.

8.2
Cheapest certified unit at $337.50; its 600-gal filters cost about $0.29 per gallon.
Installation & cabinet fit

DIY difficulty, whether it needs a drilled faucet hole, a drain saddle or an electrical outlet, renter-friendliness, and under-sink footprint (tank vs tankless).

8.5
Compact and plug-in; the carafe fits in a fridge door.
Flow & daily convenience

Flow rate or production speed, filter-change ease, and filter-life reminders.

5.5
8 cups take about 16.5 minutes, so expect 3–4 refill/empty cycles a day.
Health, materials & sustainability

Lead-free component certification (NSF 372), BPA disclosures, wastewater ratio, energy use, effects on pH and minerals, and any media leaching found in lab tests.

8.0
Stored water touches only glass; Tritan BPA/BPS-free housing; NSF 372.
Reliability & support

Leak reports, warranty length, availability of replacement parts and filters.

6.0
BOS Water reports owner complaints about leaks and support.
Specifications

AquaTru Carafe (AT100) specs

Design

Filter type
Reverse osmosis (pre/carbon, RO membrane, VOC carbon)
Filtration stages
4

PFAS

PFAS certification (as stated by maker)
IAPMO R&T certified to NSF/ANSI 53 for PFOA/PFOS (models AT100–AT140); also NSF/ANSI 42, 58, 372, 401
Third-party certified for PFAS
Yes

Maintenance

Filter capacity (primary cartridge)
600 gal
Rated filter life
24 months
Est. annual filter cost
111 USD

Performance

Rated flow rate
0.03 gpm

Sustainability

Pure-to-drain ratio (RO)
4:1 claimed; BOS Water measured ~1.8:1

Installation

Needs electrical outlet
Yes
Uses dedicated faucet (drilling may be needed)
No

Size

Water capacity
8 cups

Materials

Pitcher body material
Glass carafe; Tritan (BPA/BPS-free) housing

Features

Dispenses hot water
No
UV sterilization
No

Filtration

Remineralization stage included
No
Shopping

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Prices are checked periodically. Older amounts are labeled with their last verification date.

Disclosure: We may earn a commission when you purchase through links on this page. This does not affect our editorial rankings.

Prices and availability may change. The retailer's price and availability at checkout govern the transaction.

RetailerPriceAvailability
AmazonLowest $337.50 $375.00 In Stock View deal
Walmart $375.00 Check at retailer Check at retailer
Best Buy $375.00 Check at retailer Check at retailer
Lowest verified price $337.50
30-day low $337.50
90-day average $356.25
90-day low $337.50

Based on 4 retailer price observations captured during the last 90 days.

More coverage

Guides featuring AquaTru Carafe (AT100)

The Best Countertop Reverse Osmosis (No Install) of 2026 Best Overall · #1
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