Epic's Smart Shield under-sink filter is certified by IAPMO to NSF/ANSI 42, 53 and 401 at 651 gallons. The XP pitchers are NSF certified to 42 and 372 and lab-tested to 53 and 401. The older Pure pitcher's 200-plus contaminant list, including fluoride and PFAS, is laboratory test data rather than a certification.
Quick picks
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| # | Product | Best for | Price |
|---|---|---|---|
| 1 |  Epic Smart Shield Under-Sink FilterIAPMO certified to NSF/ANSI 42, 53 and 401, 651 gallons, straight onto the existing faucet line. | The certified one | $135.00 - View on Amazon #ad Price as of October 7, 2026. We may earn a commission. Disclosure. |
| 2 |  Epic Pure XP Water Filter PitcherNSF certified to 42 and 372, lab-tested to 53 and 401, with published fluoride and PFAS figures. | The certified pitcher | $71.20 - View on Amazon $89.00 — 20% off #ad Price as of October 7, 2026. We may earn a commission. Disclosure. |
| 3 |  Epic Pure Water Filter Pitcher150 rated gallons and 200-plus contaminants — all of it laboratory testing, none of it certified. | The long claim list | $67.20 - View on Amazon $84.00 — 20% off #ad Price as of October 7, 2026. We may earn a commission. Disclosure. |
| 4 |  AquaTru Classic Countertop Reverse Osmosis PurifierCountertop reverse osmosis certified by IAPMO across 84 contaminants, fluoride and PFAS included. | If certification decides it | $403.75 - View on Amazon $475.00 — 15% off #ad Price as of October 7, 2026. We may earn a commission. Disclosure. |
Three tiers of evidence in one catalog
Epic Water Filters sells pitchers, bottles and under-sink systems, and the evidence behind them varies by product in a way the marketing does not make obvious. Sorted from strongest paperwork to weakest, it looks like this.
| Product | Certification | Lab-tested only | Rated capacity |
|---|---|---|---|
| Smart Shield under-sink | IAPMO to NSF/ANSI 42, 53 and 401 | The wider 70+ contaminant list | 651 gallons |
| Pure XP / Nano XP pitchers | NSF to NSF/ANSI 42 and 372 | NSF/ANSI 53, 401 and P231 methods | 100 gallons |
| Pure pitcher (original) | None published | NSF/ANSI 42, 53, 401 and P473 methods | 150 gallons |
| EveryTap and Everywhere bottles | NSF to NSF/ANSI 42 | The wider claim list | Varies by model |
The practical reading: the under-sink filter is the one with real certified health claims, the XP pitchers are certified for the easy ones and tested for the rest, and the original Pure pitcher — still the model most people buy — rests entirely on laboratory testing.
The Smart Shield is the product to notice
An IAPMO certification to NSF/ANSI 42, 53 and 401 puts the Smart Shield in the same evidentiary bracket as Aquasana's Claryum line and well ahead of most direct-connect filters, which carry NSF/ANSI 42 and nothing else. It is rated at 651 gallons, connects to the existing cold line rather than needing a second faucet, and Epic quotes a fifteen-minute install.
The no-second-faucet guide covers why that format matters in a rented or finished kitchen, and the under-sink roundup puts it against the certified alternatives on cost per gallon.
The pitchers, and the number that moved
Epic's pitcher line changed shape with the XP generation, and the two versions are easy to confuse because they look similar and sit on the same shelf.
- Pure (original). 150 rated gallons, a published list of more than 200 contaminants, tested against NSF/ANSI 42, 53, 401 and P473 methods. No certification listing.
- Pure XP. 100 rated gallons, NSF certified to 42 and 372, lab-tested to 53, 401 and P231, with published figures of 99.2% for fluoride, 99.9% for lead and 99.9% for PFAS, and a shorter headline count of 70-plus contaminants.
That is an unusual trade: the newer model has better paperwork and a shorter cartridge life and a smaller headline number. Which is the better buy depends entirely on whether you value the certification or the gallons, and this site would take the certification — but it is a genuine choice rather than an obvious one.
Fluoride, which is why most people find this brand
Epic is one of a handful of pitcher brands that addresses fluoride at all. The figures it publishes are strong, and they are laboratory figures: 99.2% for fluoride on the Pure XP, with the original Pure claiming a similar order of reduction across its longer list.
No pitcher on this site holds a certified fluoride claim, because fluoride reduction under NSF/ANSI 53 does not exist as a listed claim — it lives under 58, the reverse osmosis standard. We went through that in detail here, and the fluoride roundup ranks every option by the evidence behind it.
How Epic compares with the brand it is usually compared to
Clearly Filtered occupies almost the same position: a real NSF certification for chlorine and materials, a very long lab-tested claim list, and a premium price. The differences are in the details — cartridge life, pitcher ergonomics, and which of the two publishes the figure you care about — and the pitcher roundup puts both against the certified mainstream options.
One honest point in Epic's favor: the Smart Shield gives it a certified under-sink product with a 53 and 401 listing, which Clearly Filtered's under-sink system does not have.
What none of it does
Soften water. No pitcher or carbon block touches hardness.
Purify microbiologically. Epic's own bacteria figures come from laboratory testing rather than a microbiological purifier certification, so a boil-water notice still means boil.
Last forever. 100 to 651 rated gallons depending on the product, and the cartridges are proprietary.
The cost-per-gallon math
A household drinking two gallons a day uses about 730 gallons a year.
That is roughly five Pure cartridges a year at 150 gallons, seven XP cartridges at 100, or a little over one Smart Shield cartridge at 651. The under-sink filter is several times cheaper per gallon than either pitcher before you count the certification difference — which is the same conclusion this site reaches in every tier, and the reason the pitcher is a starting point rather than a destination.
We show the arithmetic rather than a verdict so you can redo it with the price you actually pay. Filter prices move; the rated capacities above do not.
The picks in full
The certified one
Epic Smart Shield Under-Sink Filter
Epic Water Filters
The product that changes how this brand should be read. Where Epic's pitchers lean on laboratory data, the Smart Shield carries an IAPMO certification across three standards — and it runs 651 gallons on the existing cold line with no second faucet.
Certification status
Epic states the Smart Shield is certified by IAPMO to NSF/ANSI 42, 53 and 401. That is the aesthetic standard, the health-effects standard and the emerging-compounds standard together, which is a stronger position than most direct-connect filters, and stronger than Epic's own pitcher line.
Published specifications
| Rated capacity | 651 gallons |
|---|---|
| Certified standards | NSF/ANSI 42, 53 and 401 (IAPMO) |
| Format | Direct connect to the existing cold line — no second faucet |
| Dimensions | 19.75" tall x 4.5" deep x 4.25" wide |
| Install time | About 15 minutes, per Epic |
| Media | Solid carbon block |
| Tested claim list | 70+ contaminants, laboratory data beyond the certified claims |
What we like
- An IAPMO certification across 42, 53 and 401 — most direct-connect filters hold 42 alone
- 651 rated gallons, several times a premium pitcher cartridge
- No dedicated faucet, no drain line and no power: the easiest certified install in the tier
What we do not
- Every drop through the kitchen tap goes through the cartridge, including washing-up water
- Proprietary cartridge at a premium price
- No fluoride claim — carbon block cannot reach it
- Nearly 20 inches tall, so it needs real vertical clearance under the sink
Skip it if
Fluoride, nitrate or dissolved solids, and cabinets too shallow for a 20-inch housing. Reverse osmosis is the answer to the first three.
#ad Price as of October 7, 2026. We may earn a commission. Disclosure.
Where these specifications came from
The certified pitcher
Epic Pure XP Water Filter Pitcher
Epic Water Filters
The newer Epic pitcher, and the more honest one: NSF certified for chlorine and materials, lab-tested for the rest, with a shorter cartridge life than the original Pure and a shorter headline claim count. Better paperwork, fewer gallons.
Certification status
Epic states the Pure XP is NSF certified to NSF/ANSI 42 and NSF/ANSI/CAN 372, and lab-tested to NSF/ANSI 53, 401 and P231 methods. NSF's own listing records Epic's PureXP and NanoXP filters under NSF/ANSI 42. Published laboratory figures include 99.2% fluoride, 99.9% lead and 99.9% PFAS — test data rather than certified claims.
Published specifications
| Rated filter life | 100 gallons / about 3-4 months |
|---|---|
| Certified | NSF/ANSI 42 and 372 (NSF) |
| Lab-tested | NSF/ANSI 53, 401 and P231 methods |
| Contaminants claimed | 70+ |
| Fluoride | 99.2% (laboratory data) |
| Lead | 99.9% (laboratory data) |
| PFAS | 99.9% (laboratory data) |
What we like
- A genuine NSF certification, which most wide-claim pitchers do not hold at all
- Published fluoride and PFAS figures, which certified mainstream pitchers do not claim
- Clear separation on Epic's own pages between what is certified and what is tested
What we do not
- 100 rated gallons against the original Pure's 150 — fewer gallons for better paperwork
- The certification covers chlorine, taste, odor and materials, not the headline claim list
- Premium cartridge price, so cost per gallon is high next to a certified mainstream pitcher
- Gravity flow through dense media is slow
Skip it if
Anyone who needs a certification listing naming fluoride or PFAS. No pitcher holds one; reverse osmosis is the certified route for both.
$89.00 — 20% off
#ad Price as of October 7, 2026. We may earn a commission. Disclosure.
The long claim list
Epic Pure Water Filter Pitcher
Epic Water Filters
One of very few pitchers that addresses fluoride at all, with a 150-gallon rated life that partly offsets a high filter price. Like Clearly Filtered, it is tested against the standards rather than certified under them.
Certification status
Tested against NSF/ANSI 42, 53, 401 and P473. Tested to the standards, not certified under them — read the claim precisely.
Published specifications
| Rated filter life | Up to 150 gallons |
|---|---|
| Standards tested against | NSF/ANSI 42, 53, 401, P473 |
| Manufacturer claim | Over 200 contaminants, including lead, PFAS, chromium-6 and fluoride |
What we like
- Addresses fluoride, which certified pitchers essentially never do
- 150-gallon rated life is the longest in the pitcher tier
- Published test data spans an unusually broad contaminant list
What we do not
- Tested to, not certified under, the NSF standards
- Expensive per filter, though the long life narrows the gap per gallon
- Slow flow — the trade-off for a dense media block
Skip it if
Anyone who needs a certification listing rather than a test report, or anyone whose only problem is chlorine taste — this is a lot of filter for that job.
$84.00 — 20% off
#ad Price as of October 7, 2026. We may earn a commission. Disclosure.
Where these specifications came from
If certification decides it
AquaTru Classic Countertop Reverse Osmosis Purifier
AquaTru
Reverse osmosis performance with no plumbing, no drilling and no landlord conversation. You pay for that with counter space, a wait, and two tanks you fill and empty by hand.
Certification status
Certified by IAPMO to NSF/ANSI 53, 58, 401 and P473, covering lead, reverse-osmosis performance, emerging compounds and the PFOA/PFOS protocol.
Published specifications
| Filtration | 4-stage countertop reverse osmosis |
|---|---|
| Clean water tank | 0.75 gallons |
| Tap water tank | 1 gallon |
| Installation | None — no plumbing connection |
| Certified standards | NSF/ANSI 53, 58, 401, P473 (IAPMO) |
What we like
- Real reverse osmosis with a P473 PFOA/PFOS certification and zero installation
- The strongest answer available to a renter with a lead or PFAS problem
- No drilling, no drain saddle, no landlord permission needed
What we do not
- Takes up substantial counter space
- You refill and empty tanks by hand — it is not on-demand
- Highest purchase price in the no-plumbing tier by a wide margin
Skip it if
Anyone who can plumb in an under-sink system. A permanent under-sink RO is cheaper per gallon, on-demand, and out of sight. Buy this when you genuinely cannot install.
$475.00 — 15% off
#ad Price as of October 7, 2026. We may earn a commission. Disclosure.
Where these specifications came from
Questions people actually ask
Is Epic Water Filters NSF certified?
Partly, and it depends on the model. NSF's listing records Epic's PureXP and NanoXP pitcher filters and its EveryTap and Everywhere bottle filters under NSF/ANSI 42, and Epic states the XP pitchers also hold NSF/ANSI 372 for materials. The Smart Shield under-sink filter is certified by IAPMO to NSF/ANSI 42, 53 and 401. The original Pure pitcher's 200-plus contaminant list is laboratory test data rather than a certification.
Does Epic remove fluoride?
Epic publishes 99.2% fluoride reduction for the Pure XP pitcher and similar figures for the original Pure, from laboratory testing. No pitcher from any brand holds a certified fluoride claim, because fluoride reduction is a claim under NSF/ANSI 58 — the reverse osmosis standard — rather than under the carbon standards.
Which Epic filter should I buy?
The Smart Shield under-sink filter, if you can plumb it in: it is the one with an IAPMO certification across 42, 53 and 401, and at 651 rated gallons it is far cheaper per gallon than the pitchers. If it has to be a pitcher, the Pure XP carries the NSF certification; the original Pure carries the longer lab-tested list and more gallons.
Epic or Clearly Filtered?
They are close. Both hold an NSF certification for chlorine and materials and publish long laboratory claim lists for everything else. Epic's advantage is the Smart Shield, a certified under-sink filter with 53 and 401 claims; Clearly Filtered's pitcher publishes a wider tested list. Compare on the specific contaminant you care about and on cost per rated gallon.
How long do Epic filters last?
The original Pure pitcher cartridge is rated at 150 gallons, the XP pitchers at 100, and the Smart Shield under-sink filter at 651. Rated gallons rather than months is the number to compare, because household draw varies enormously.