Clearly Filtered Pitcher review: strong buy

We’d buy the Clearly Filtered pitcher if your priority is maximum contaminant-reduction claims and lab data, and you will pay more upfront for that. We’d skip it if your tap water tests fine and you just want better-tasting drinking water. The vessel is still plastic, the flow is slower than a basic carbon filter, and the higher price is the trade for the broader claim.

Clearly Filtered is the pitcher for people who have read the contaminant literature and want the longest possible removal list without moving to an under-sink system. It is expensive, and its certification story needs explaining properly.

Quick answer

Independent lab testing shows removal of 365+ contaminants, including 99.34% of lead and effectively complete PFAS removal, while retaining beneficial minerals. It is NSF certified to NSF/ANSI 42 and 372; its health-contaminant performance is evidenced by independent laboratory testing rather than by NSF 53 certification. That distinction matters and is explained below.

The certification question, explained honestly

This trips people up, so it is worth being precise.

Clearly Filtered holds NSF/ANSI 42 certification (taste and odor) and 372 (lead-free materials). Its performance against health contaminants — lead, PFAS, pharmaceuticals and the rest of the 365+ list — is demonstrated through independent third-party laboratory testing rather than through NSF/ANSI 53 certification.

Is that a problem? Reasonable people differ. NSF 53 certification involves ongoing auditing and a formal programme; independent lab testing is a snapshot, even when conducted by a credible lab to the relevant standards. On the other hand, the testing is published in detail, the compound list is unusually specific, and the results have been consistent.

Compare with ZeroWater, which carries IAPMO certification against NSF/ANSI 42, 53 and 401. That is a more formal certification route.

Our read: the testing evidence for Clearly Filtered is genuinely strong and unusually transparent, and buyers who specifically want formal NSF 53 certification should know that is not what they are getting.

Where it stands out

Breadth. 365+ contaminants is the longest list in the pitcher category by a wide margin, covering PFAS, lead, pharmaceuticals, pesticides, herbicides, and disinfection byproducts.

PFAS with complete data. Clearly Filtered publishes the most detailed PFAS testing in the category, covering the broadest list of individual compounds rather than a single “total PFAS” figure. If you want to check a specific compound, this is the brand most likely to have tested it.

It keeps minerals. Unlike ZeroWater’s strip-everything approach, Clearly Filtered targets contaminants while leaving calcium and magnesium. Water tastes like water rather than tasting like nothing — a genuine advantage if you found ZeroWater flat.

Filter life is decent at around four months or 100 gallons, considerably better than ZeroWater’s ion-exchange resin.

The costs

It is the most expensive pitcher in the category, and the replacement filters are expensive too. Flow is slow — the tight filtration that produces the removal figures also restricts flow, and this is a fill-and-wait pitcher rather than a pour-on-demand one.

The pitcher itself is plastic, which strikes some buyers as incongruous at this price, though it is BPA-free and the company publishes materials testing.

Who should buy it

Anyone who wants maximum contaminant coverage with mineral retention and does not want an under-sink installation. Particularly good for renters who cannot modify plumbing, and for anyone with a specific compound of concern — the published per-compound testing lets you actually check.

Who should skip it

Skip it if formal NSF 53 certification is your requirement rather than lab testing. Skip it on budget, since both purchase and replacement costs are high. And skip it if slow flow will annoy you daily — this is genuinely a fill-the-night-before pitcher.

Final verdict

Strong Buy for the contaminant-focused buyer, with the certification nuance stated plainly. The removal data is the most detailed in the category and mineral retention is a real advantage over stripping approaches. You are paying a substantial premium for that, and the certification route is testing-based rather than NSF 53.

See our best water filters for microplastics and contaminants guide.