Epic vs Clearly Filtered

Why these two get compared at all

Almost every pitcher comparison on this site is a contest between a certified product and a cheap one. This one is different, which is why it needs its own page: Epic and Clearly Filtered are the same kind of product, sold on the same promise, and the usual deciding factors do not separate them.

Both publish contaminant lists far wider than anything the certified mainstream claims. Both reach fluoride and PFAS, which a Brita or a PUR does not. Both are the expensive end of the pitcher tier. And in both cases the headline list rests on laboratory testing commissioned by the company rather than on a certification listing held by a listing body.

So the reader arriving at this comparison has usually already accepted the trade — they are not asking "certified or tested", they are asking which of these two to buy. That question has a real answer, and it is not the one most comparisons give.

What each one actually holds, as evidence

This is the section worth reading slowly, because the two brands are more alike here than their marketing suggests.

Epic. Epic's own page for the Pure XP states the filter is NSF Certified to NSF/ANSI Standard 42 and NSF/ANSI/CAN 372, and separately that it was Independently tested to NSF/ANSI Standards 42, 53, 401 and P231. The claim count on that page is 70+ contaminants. NSF's own listing database records Epic's PureXP and NanoXP filters under NSF/ANSI 42.

Clearly Filtered. NSF's listing database records the Filtered Water Pitcher under NSF/ANSI 42 at 100 gallons for chlorine reduction and taste and odor reduction. The company states it holds NSF/ANSI 42 and 372. Everything beyond that — the 386-plus contaminant list, the fluoride and PFAS figures — comes from testing at an ISO 17025 accredited laboratory working to NSF/ANSI protocols, including P473.

Read the last two rows together and the comparison resolves. These are not two brands making the same claim at different prices. They are two brands that paid for different tests.

P231 and P473, which is the whole decision

Protocol numbers look like trivia and they are not. They describe what a laboratory was asked to challenge the filter with, and the two brands chose differently.

NSF P231 is the microbiological purifier protocol. It is about bacteria, viruses and cysts — biological contamination rather than chemistry. A filter tested to P231 is making a claim about pathogens, which is why Epic's retail listing mentions bacteria and viruses at all. Almost no pitcher goes near this.

NSF P473 is the PFOA and PFOS protocol. It is the specific test behind credible PFAS claims, and it is the one Clearly Filtered's published PFAS figures rest on. The certification guide covers what each standard number means in full.

So the buyer question is not "which is better". It is which contamination you are actually worried about:

One honest caveat on the Epic side: a P231 test is not a reason to treat a pitcher as a substitute for disinfection on water of unknown quality. If biological contamination is a live risk — a private well, a boil-water notice — the cyst page covers what the certifications actually permit, and well bacteria is its own problem with its own equipment.

Filter life used to separate them. It no longer does.

This page previously would have been a short one, because Epic's cartridge was the longest-lived in the tier. That has changed, and it is worth stating plainly because the old figure is still all over the internet.

Epic's own page now rates the Pure cartridge at 100-gallon filter capacity, lasting approximately 3-4 months with typical use. Retailer listings still quote 150 gallons in places; the 100-gallon figure is the one on the manufacturer's own site and the one on the current retail listings, and it is what this site now uses.

Clearly Filtered's pitcher is rated at 100 gallons, per NSF's own listing. So the two are level, and the cost-per-gallon comparison collapses into a straight cartridge-price comparison with no capacity advantage to either side.

For context on the tier: a Brita Elite is rated at 120 gallons and a ZeroWater at 15 to 20. Both of these sit in the middle of that range — the filter-life page works through how to turn a rated capacity into your real interval, which is a different number from the one on the box.

Price, and what the gap buys

There is a real and consistent price gap between these two, and it is the clearest practical argument on the page.

Clearly Filtered sits at the top of the pitcher tier; Epic sits meaningfully below it, with the Pure and the Pure XP at the same price as each other. Since the rated capacities are now identical, that gap is not buying gallons. It is buying claim breadth — 386-plus against 70-plus — and the P473 protocol instead of P231.

Whether that is worth it depends entirely on whether the extra claims cover something in your water. For a household with a PFAS notice, it plainly can be. For a household buying on a general sense that more is better, it is a lot of money for numbers that are not certifications either way.

We do not print prices in this text. The buy buttons carry the live figure and the date it was checked.

The under-sink escape hatch

If you have read this far and concluded you want the Clearly Filtered claim list, there is a version of that purchase which makes far more sense per gallon, and the pitcher comparison obscures it.

The company's under-sink system is rated at 2,000 gallons against the pitcher's 100 — twenty times the water per cartridge. Note how the company itself labels the two differently: the pitcher listing says NSF Certified, and the under-sink listing says third-party tested. That is a fair description, and it is the under-sink system's honest weakness: it has no certification listing at all, where the pitcher at least holds one for chlorine and materials.

Epic's equivalent move is the Smart Shield, which is a genuinely different proposition because it is IAPMO certified to NSF/ANSI 42, 53 and 401 at 651 gallons — a real certification across a health-effects standard, which neither pitcher here has. If the certification is what has been bothering you through this whole page, that is where to look rather than at either pitcher.

What we would actually buy

A comparison that refuses to land is useless, so here is the ranking with its reasoning exposed.

If you have a PFAS result: Clearly Filtered, for the P473 figures, and accept that they are test data. The PFAS roundup lists the certified alternatives, and they are mostly reverse osmosis.

If you want the best paperwork of the two: Epic Pure XP. A stated NSF certification to 42 and 372 plus a P231 test is a stronger evidence package than a wider list with the same certification scope, and it is cheaper.

If fluoride is the single reason you are shopping: either, and then read the fluoride roundup, because reverse osmosis is certified for fluoride under NSF/ANSI 58 and no pitcher is.

If you only have a chlorine taste problem: neither. Buy a certified mainstream pitcher from the pitcher roundup and spend the difference on something else.