AquaTru's under-sink reverse osmosis unit, sold as a 4-stage system with a leak detector. The certification language is the seller's.
AquaTru's under-sink reverse osmosis unit, sold as a 4-stage system with a leak detector. The certification language is the seller's.
Jonah wouldn't reorder this if… The listing is a corded under-sink filter at $420 with a 4.5 rating. It claims NSF/ANSI-style certification and a leak shutoff.
An under-sink filter is a plumbing project, not a pitcher. AquaTru's listing is a 4-stage alkaline reverse osmosis system that sits in the cabinet and feeds a faucet. The price on the page was $420.00, with a 4.5 rating. That price is the reason to read the install list before you click.
The seller says the unit is certified to NSF/ANSI standards by IAPMO and names lead, chlorine, chloramine, fluoride, arsenic, and microplastics among the contaminants it reduces. Certification is a specific claim. Open the certification line on the listing and see the standard numbers. Do not treat a bullet as a water report for your house.
Two practical features are easier to judge. The listing describes a leak detector that alerts and shuts off the cold line, and a tank that stores up to 1.7 gallons. It is corded, installed under the sink, and the included parts name a pre/carbon filter and the reverse osmosis hardware. If your cabinet is a knot of disposal and cleaners, measure it.
- Best overall: AquaTru Under Sink Alkaline Reverse Osmosis Water Filter
Best overall
AquaTru Under Sink Alkaline Reverse Osmosis Water Filter

Filters are the second price. A $420 unit with a cartridge you cannot buy in six months is a bad purchase even if the first glass tastes better. Find the replacement filter listing before you install anything. The control panel, per the bullets, includes filter-change alerts and a reset.
The spec block also says the material type is glass, which does not match a plastic under-sink tank and is a good example of why you trust the photos over a stray spec cell. Power is corded electric. If the outlet under your sink is already full, this is not a battery gadget. Budget a plumber if you have never pierced a drain line.
$420.00
Price copied from the Amazon listing when this was written. Check the live price.
Photos from the listing
About this item
- REMOVES 84 HARMFUL CONTAMINANTS: Certified to NSF/ANSI standards by IAPMO to reduce contaminants including lead, forever chemicals, fluoride, chlorine, chloramine, microplastics, arsenic, and more. Delivers clean, pure water directly from the faucet.
- LEAK DETECTOR & CONTROL PANEL: Detects leaks, sounds an alert, and automatically shuts off the cold water line to the unit to stop more water from flowing. Control panel includes filter change alerts, battery status, leak detection, & reset button.
- HIGH WATER CAPACITY + LONG-LASTING FILTERS: Stores up to 1.7 gallons of purified water with dedicated faucet for on-demand access. AquaTru's Pre/Carbon Filter lasts up to 6 months, RO Filter up to 2 years, and VOC Carbon Filter up to 1 year.
- 98% of CUSTOMERS SURVEYED SAID THEIR WATER IS CLEANER, SAFER, & HEALTHIER: Use for drinking, coffee, tea, ice cubes, cooking, baby formula, and pet bowls. Save hundreds of dollars per year by not having to buy single-use plastic water bottles.
- "WHAT'S INCLUDED + 1-YEAR WARRANTY: AquaTru Under Sink Manifold, Pre/Carbon Filter, Reverse Osmosis Filter, VOC Filter, RO Storage Tank, Dedicated Faucet (Stainless steel, matte black, polished chrome), Tubing & Installation Kit, TruPure RO Sanitizer "
Item details
| Brand Name | AQUA TRU |
| Included Components | Under Sink Unit, Pre/Carbon Filter, Reverse Osmosis Filter, ph+ VOC Filter |
| Model Name | AquaTru Under Sink Reverse Osmosis Water Filter |
| Model Number | 90AT02US01-S |
| UPC | 874617006188 |
| Manufacturer | AquaTru |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Part Number | 90AT02US01-S |
| ASIN | B0H5G1WW7X |
Additional details
| Material Type | Glass |
Features & Specs
| Other Special Features of the Product | Certified by IAPMO to NSF/ANSI Standards |
| Container Type | Tank |
| Installation Type | Under Sink |
| Purification Method | AquaTru Alkaline Under Sink |
| Power Source | Corded Electric |
| Filter Life Cycle | 6 months |
| Item Dimensions L x W x H | 11"L x 16.25"W x 20"H |
| Capacity | 11.63 liters |
| Material Type | Glass |
Product Description
"The AquaTru Under Sink delivers award-winning, certified filtration technology with a minimalist, durable design
Using a patented 4-Stage Ultra Reverse Osmosis filtration, it delivers clean, healthy water you can trust – directly from your faucet.
Designed for families and high-use households, the AquaTru Under Sink water purifier is certified to NSF standards by IAPMO to remove 84 contaminants commonly found in tap water, including lead, chlorine, chloramine, forever chemicals, microplastics, and more from your tap water.
Detects leaks from the unit, sounds an alert, and automatically shuts off the cold water line to the unit to stop further water from flowing.
Convenient control panel functionality keeps you in the know for pure, healthy water at your fingertips, including: filter change alerts, battery status, leak detection, & reset button.
Comes with TruPure Sanitizer, a patented AquaTru innovation that allows users to easily sanitize the RO Holding Tank without the need for any special tools
"
Options Available
Color
Matte Black
Polished Chrome
Stainless Steel
Purification method
AquaTru Alkaline Under Sink
AquaTru Under Sink
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What Jonah will actually plug in again
I cut anything that hides the size. A pretty bulb that does not name the base is a return.
- Size, base, or filter code is in the Amazon title.
- Photo from that listing.
- No forced subscription you cannot kill.
- Public rating when Amazon shows one.
Match the code on the old part before you buy. This is not a showroom.
Filters, bulbs, and the 11pm fix
Is the certification real?
The listing says IAPMO certification to NSF/ANSI standards. Read the exact standard numbers on the page. We did not audit the lab.
What does installation take?
Under-sink space, a cold-water tie-in, a drain connection, and a power outlet. The unit was listed at $420.





