AquaTru makes three main water purifiers — the Classic, the Carafe, and an Under Sink model. All three use the same patented 4-stage reverse osmosis technology and carry the same NSF certifications. The differences are in size, capacity, installation, and the materials water touches. Here's how to choose.
AquaTru's purifiers are independently tested and certified by IAPMO to NSF/ANSI standards 41, 53, 58, 401, and P473 — five separate certifications, more than any other countertop RO system on the market. They remove 84 contaminants including PFAS, lead, fluoride, arsenic, nitrates, and microplastics.
The Classic is AquaTru's flagship countertop purifier. It sits on your counter, plugs into a standard outlet, and requires no plumbing. The 0.75-gallon clean water tank is large enough for most households, and the 0.6:1 waste ratio is the best available in countertop RO.
Read our full AquaTru Classic review →
The Carafe delivers the same RO filtration in a more compact package with a 64oz glass carafe instead of a plastic tank. It's ideal for one to two people who want glass over plastic for their clean water storage.
Read our full AquaTru Carafe review →
The Classic Smart adds WiFi connectivity and a companion app that tracks filter usage, TDS readings, water consumption, and money saved vs bottled water. The filtration is identical to the standard Classic. Worth the upgrade if you tend to forget filter changes or enjoy data about your water quality.
Every AquaTru purifier uses the same 4-stage Ultra Reverse Osmosis process: a pre-carbon filter (stages 1–2) captures sediment and chlorine, the RO membrane (stage 3) removes dissolved contaminants down to ionic level, and a VOC carbon filter (stage 4) removes PFAS, prescription drug residue, and other organics.
AquaTru's electric pressure pump gives it a 0.6:1 waste ratio — far more efficient than the 3–5:1 ratio of most countertop RO competitors.