Short answer: For most families on city water, the Clearly Filtered pitcher ($100) is the better buy. It holds NSF P473 certification for PFAS, removes fluoride at 99.54%, and handles 365+ contaminants - all without wasting a drop of water. The AquaTru ($475) is the stronger system if you have well water, very high contamination, or want the maximum possible protection from reverse osmosis.
These are two of the best water filters you can buy in 2026, and they both have real independent certifications to back up their claims. That already puts them ahead of most of the market.
But they solve different problems at very different price points. The AquaTru is a countertop reverse osmosis system that strips essentially everything from your water. The Clearly Filtered is a pour-through pitcher that uses a multi-media carbon block to target the contaminants that actually matter. Let me walk you through which one makes more sense for your situation.
The Technology Difference
The AquaTru uses 4-stage reverse osmosis. Water gets pushed through a semi-permeable membrane that blocks contaminants at the molecular level. This is the same technology used in bottled water plants and kidney dialysis machines. It removes virtually everything - including beneficial minerals like calcium and magnesium.
The Clearly Filtered uses what they call Affinity Filtration Technology - essentially a multi-layered carbon block that targets specific contaminants through adsorption, ion exchange, and sub-micron filtration. Unlike RO, it preserves the minerals your body actually wants while still removing the chemicals it doesn't.
Both approaches work. The question is whether you need the nuclear option (RO) or the targeted one (advanced carbon block).
Where Clearly Filtered Wins
The price difference is the obvious one - $100 vs $475. But the advantages go deeper than that.
Clearly Filtered produces zero wastewater. Every drop you pour in comes out filtered. The AquaTru wastes roughly 1 gallon for every 3 it produces, which adds up on your water bill and feels wasteful if you live somewhere with water scarcity concerns.
Clearly Filtered also preserves beneficial minerals. RO systems strip calcium, magnesium, and potassium - minerals your body needs and that make water taste good. Some people find RO water tastes "flat" because of this. The Clearly Filtered pitcher doesn't have that problem.
And here's the number that surprised me: Clearly Filtered is tested against 365+ contaminants compared to AquaTru's 84. Now, testing methodology matters, and AquaTru's certifications are for NSF-verified removal, while some of Clearly Filtered's 365+ are from internal testing. But the breadth of coverage is genuinely impressive for a pitcher filter.
Where AquaTru Wins
Reverse osmosis is the gold standard of water filtration. Period. If you have serious contamination issues - well water with arsenic, high nitrate levels, or industrial chemicals in your area - RO is the technology you want.
AquaTru also wins on long-term filter costs. Their RO membrane lasts 2 years, and a full year of replacement filters runs about $60-80. Clearly Filtered's filters last 100 gallons (roughly 2-4 months depending on your family size), costing $110-220 per year in replacements. Over a 3-year period, the total cost of ownership is closer than the sticker prices suggest.
The AquaTru's five NSF certifications (42, 53, 58, 401, P473) also cover the full spectrum of contaminant types. If you want one filter that handles everything with maximum certainty, the AquaTru delivers that confidence.
Head-to-Head Comparison
AquaTru Advantages
- Reverse osmosis removes virtually everything
- Five NSF certifications (42, 53, 58, 401, P473)
- Lower annual filter cost ($60-80 vs $110-220)
- Best for well water and high-contamination areas
- RO membrane lasts 2 years
Clearly Filtered Advantages
- 75% cheaper upfront ($100 vs $475)
- Zero wastewater produced
- Preserves beneficial minerals
- 365+ contaminants tested
- Fits in fridge - no counter space needed
- No electricity required
The Bottom Line
For most families on municipal water, the Clearly Filtered pitcher is the smart buy. You get certified PFAS removal, fluoride removal, and lead protection at $100 instead of $475. It preserves healthy minerals, wastes zero water, and fits in your fridge.
If you have well water, live near industrial contamination, or just want the absolute maximum filtration possible, the AquaTru is worth the investment. Reverse osmosis is the gold standard for a reason.
Either way, you're choosing between two genuinely excellent, independently certified water filters. That already puts you ahead of 90% of families still using unfiltered tap water or a basic Brita.