P1 Under-Sink filter beside its retail boxWhat’s in the box: P1 Under-Sink system, outlet adapter, inlet hose, gaskets, mounting screw and anchorUp to 98% reduction of chlorine and heavy metals; independently proven to target 100+ impurities in city waterCompact system: the P1 fits effortlessly underneath virtually every sinkQuick replacements: twist, swap and continue enjoying cleaner water4 layers of protection, laboratory tested to surpass NSF/ANSI 42 and 53 benchmarksNanofiber™ oxygen-infused activated carbon fibre compared with granular activated carbonPurity beyond drinking: filtered water for drinking, cooking and washingFilter lifespan: Nanofiber™ media delivers up to 2 years of pure water before replacementFilter tracking: the companion app shows filter life, automated replacements and supportBenefits compared: Purely Nanofiber™ media against fridge filters and pitcher filtersBenefits of cleaner hydration: more energy, healthier hair and skin, better recoveryRetains essential minerals: sodium, magnesium, zinc, selenium, manganese, iron, calcium and potassiumMade for coffee lovers: cleaner water for a smoother, richer cupNo loss in water pressure: clean, filtered water on demandOur pets deserve cleaner water tooTry it risk-free for 30 days: full refund if it doesn’t meet your expectationsP1 Under-Sink installed under a kitchen sink30-day money-back guarantee, no questions asked
1,769 reviews

P1 Under-Sink

Enjoy pure water straight from your faucet. The P1 Under-Sink filter is designed to reduce up to 99% of 100+ contaminants while preserving beneficial minerals for drinking, cooking, and washing.

  • Equipped with Nanofiber™ Filtration Media.
  • Filters Chlorine, Lead, VOC’s, PFAS, Microplastics and more.
  • Lasts Up to 2 Years Before Cartridge Replacement
  • Independently Tested to Meet NSF 42
  • Try Risk-Free for 30 Days or Your Money Back
30-Day Money Back
Free Shipping
5-Year Warranty

What You’ll Feel

Cleaner Taste & Odour

Reduce the common tap-water impurities that affect how your water tastes and smells.

Consistent Hydration

The convenience of better tasting water at the turn of a tap makes reaching for another glass that much easier.

Confident Kitchen

The water used for drinking, coffee, tea, cooking, washing produce, all comes from the same clean source.

Performance You Can Trust

Tested to meet NSF/ANSI 42 & 53 standards for filtration performance, giving you trusted filtration every time you turn on the tap.

Meet Our Community.

A community of people who believe better water leads to better living.

Tania Bernardo
Tania BernardoOwner of Groupe Bernardo
Viktor Klobucar
Viktor KlobucarCMMTQ Master Plumber, Owner Integra Plumbing
Frances Michaelson
Frances MichaelsonLicensed Naturopath & Founder of Live The Wow
Rhonda Massad
Rhonda MassadOwner of West Island News
Katherine Garbarino
Katherine GarbarinoOwner of KGMTL
Maude Colin
Maude ColinNaturopathe en Santé Hormonale et Fertilité
Removes Up to0%Chlorine & Chloramine
Removes Up to0%Lead & Heavy Metals
Removes Up to0.0%Microplastics & PFAS
Removes Up to0%VOC’s & Trihalomethanes
Performance Data Sheet
P1 Under-Sink Drinking SystemP1 Under-Sink

The 10-Minute Upgrade Your Kitchen Will Thank You For.

The P1 is designed for a quick, tool-free setup beneath your kitchen sink. No plumber or specialized equipment is required. Simply connect the system and enjoy cleaner, better-tasting drinking water in about 10 minutes.

0Minutes to install
0Tools required
0Filtration stages
0Years of filtration

Contaminants the P1 Protects Your Home Against

Chlorine

A disinfectant added to almost all municipal tap water to kill germs.

Lead

A heavy metal that can leach from older pipes, solder, and brass fittings.

Microplastics

Plastic particles smaller than 5 mm that shed from packaging, textiles, and weathered debris.

Pharmaceuticals

Trace amounts of medications that slip past conventional water treatment.

Chloroform

A disinfection byproduct that forms when chlorine reacts with organic matter in water.

Haloacetic Acids

A group of disinfection byproducts linked to long-term health risks with ongoing exposure.

Copper

A metal that can leach into water from copper plumbing, especially when water sits overnight.

Rust & Sediment

Fine particles of corroded iron and grit that flake off aging pipes and water mains.

A Community of People
Who Care About
Better Water

Not all filters are created equal.

Traditional carbon filters rely on synthetic polymer binders to hold carbon together, reducing the amount of active filtration media inside the filter. Purely uses fibers to form the filtration structure, creating significantly greater surface area for more efficient contaminant adsorption and longer-lasting performance.

100%Nanofiber™Activated CarbonFiber Matrix1500 m2/gGAC, PACConventionalActivated Carbon800 m2/gContaminant Level Reduction (%)%*Total Water Filtered (L)tTime to reach each volume varies based on household size and water usage.

Introducing

Nanofiber™ Filtration
Technology

Our innovative Nanofiber™ media takes one of the most effective filtration materials on the market—activated carbon—and enhances its efficiency and longevity by transforming it from loose granules into tightly interwoven fibrous strands.

This structure increases available surface area while reducing channeling, allowing for more consistent and effective filtration over time.

A P1 cartridge opened up, with the fibre-optimized carbon media magnified

See how Nanofiber™ compares to traditional activated carbon filters:

Nanofiber™ media
OthersGAC/Carbon Block
Filters Chlorine, Lead, Microplastics & 100+ contaminants.
Yes
No
Lasts up to 2 Years or 25,000 L
Yes
No
Uses up to 99% of its own media for filtration.
Yes
No
Maintains a reduction rate above 90% near the end of its advertised capacity?
Yes
No
Costs less to maintain over 5 years?
Yes
No
Eliminates channeling?
Yes
No
Better for the environment/wastes less unused media?
Yes
No

Nanofiber™ media is proven to reduce up to 99% of:

  • Chlorine
  • Chloramine
  • VOC’s (THMs & HAAs)
  • PFAS
  • Lead
  • Heavy Metals
  • Turbidity
  • Cysts
  • Microplastics
  • 100+ More

While preserving the minerals crucial for your health, and cellular hydration such as:

  • Sodium
  • Magnesium
  • Selenium
  • Calcium
  • Zinc
  • Manganese
  • Potassium

The Water in Your Kitchen Affects More Than You May Realize.

From your first glass in the morning to the water you cook your food with in the evening, one kitchen faucet touches nearly every part of your family's day.

Drinking Water

Every glass, straight from the tap

Cooking

The most-used ingredient in your kitchen

Coffee & Tea

Water quality shapes flavour and clarity

Fruits & Vegetables

What rinses your produce ends up on it

Skin

Dryness and irritation start at the tap

Pets

Their bowl deserves clean water too

Ice

As clean as the water it is made from

The P1 Under-Sink Drinking Filter improves the water you consume most, filtering it directly beneath your sink before it reaches your glass, kettle, pot, or ice tray.

One Cartridge. Four Stages.

The P1 combines four specialized filtration technologies inside one compact cartridge, each designed to reduce different impurities commonly found in city water, from sediment and chlorine to heavy metals and scale.

The first stage captures rust, sand, silt, and other suspended particles as small as five microns. This helps protect the remaining filtration media while improving the clarity of your water.

4.7out of 53,800+verified reviews

Hear From Homeowners

Software

Never miss a filter replacement

Even the highest quality filter is only as effective as its maintenance. Replacing your filter on time is essential to maintaining cleaner, safer, and better-tasting water.

Our Promise

Risk-Free Trial

Feel it, or get your money back.

30DAYMONEY-BACK
GUARANTEE

If you’re not satisfied, return your system within 30 days for a full refund. No questions asked.

5-Year Warranty

Your system is covered for five full years, giving you long-term confidence and peace of mind.

Satisfaction Guarantee

If your system or experience does not meet your expectations, our team will make it right.

Guarantee and warranty coverage subject to conditions. See full Terms & Conditions

Join a community around better water and better health.

Filtered water being poured in a bright kitchen
P1 Bundle Exclusive

Get Four Years of Cleaner Drinking Water

Bundle the P1 with an extra replacement cartridge and save upfront while keeping cleaner, better-tasting water flowing from your kitchen faucet for up to four years.

The P1 Four-Year Bundle

Compact four-stage under-sink filtration for cleaner drinking, cooking, coffee, and everyday kitchen use.

One-time purchase $325

0% financing up to 12 months available

Affirm financing availableAccepted payment methods: Amex, Apple Pay, Google Pay, Mastercard, Shop Pay, Visa

Your Bundle Includes:

P1 Under-Sink Drinking Filter

Four-stage under-sink filtration for cleaner, better-tasting water at your kitchen faucet

Extra Replacement Cartridge

An additional cartridge included, extending your filtration coverage by another two years

$159

Tool-Free Installation

Installs in minutes with no plumber and no tools required

Bundle TotalSave $94
Shop The Bundle

Find the Right System For Your Home

Features
P1 Under-SinkPoint-of-use filtration for cleaner, better-tasting water right at your kitchen tapPurely P1 Under-Sink system$260+tx0% Financing Available
1-Stage DefenderFull purity with headroom to spare in smaller householdsPurely P1+ 1-Stage system$1,195+tx0% Financing Available
Most Popular2-Stage DefenderHolds full purity through busy family demandPurely P1+ 2-Stage system$1,695+tx0% Financing Available
4-Stage DefenderPeak purity at any demand, any household sizePurely P1+ 4-Stage system$2,595+tx0% Financing Available
Household GuidanceA starting point, not a limit
–
Effortless for 1-2
Effortless for 2-4
Effortless at any size
Purity at Peak DemandShowers, laundry & taps running at once
–
Steady with lighter demand
Steady through busy mornings
Never dips at any demand
Nanofiber™ CartridgesPurely Certified Nanofiber™ Technology
1 stage
1 stage
2 stages
4 stages
WarrantyCoverage on your system
5 years
5 years
5 years
5 years
0% FinancingOn approved credit
Up to 12 months
Up to 24 months
Up to 24 months
Up to 24 months
Taste & Odour Guarantee
30-Day Money-Back Guarantee

FAQs

No. The P1 is designed for tool-free DIY installation and connects to your existing cold-water line in about 10 minutes. If you prefer a hand, you can also contact one of our associated plumbing companies for assistance.