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"A whole-house installation is a must-have. I’ve noticed a huge difference in my kids’ dry skin. Don’t know what I’d do without Purely."
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S1 Shower-Handle
15.99$CAD
19.99$
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P1 Under-SInk
4 Years of Purity
Connecting your home to a sustainable source of clean, healthy water. Welcome to smarter filtration.
Trusted by 10,000+ homes around the world.
VANESSA COSTANZO
Natalia Bielecki
Katherine Garbarino
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P1 Under-Sink
4-Stage Drinking Water Filtration System
15.99$CAD
19.99$
30% OFF
The P1 connects right under your sink to instantly improve the taste, smell, and purity of your tap water. Using advanced fiber technology, it prevents channeling, meaning every drop is filtered evenly, from start to finish. It’s built to fix the common problems most filters overlook and give you a better, all-in-one solution for your home.
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Reduces up to 99% of over 80+ common tap water contaminants.
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New Fiber Technology offers smarter and more consistent filtration.
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World-class certified technology - NSF, SGS, WQA
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Low maintenance. Lasts up to two years before needing replacement.
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Risk free 30-day trial.
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Tested &
Certified
Certified
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30 Day
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Benefits
- Improves the taste of coffee and tea.
- Better hydration for pets.
- Better for cooking and washing fruits and vegetables.
- Cleaner, purer water with improved taste and no odour.
- A sustainable choice, reduces the need for plastic bottles
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How it Works
- Connect it to your cold water line under the sink.
- Run your tap for 30 seconds to flush the system.
- Enjoy fresh, purified water, instantly.
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Box Contents
- P1 Under-Sink Filter (with cartridge pre-installed)
- Universal adapters & gaskets
- Mounting hardware
- Flexible water supply line
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Specifications
- Filter Life: Up to 60,000 liters or 2 years — depending on household size and water quality
- Compact Size: Just 13” tall x 3.5” wide — about half the size of traditional filters, saving cabinet space
- Flow Rate: Matches the flow of a standard kitchen faucet (~2 GPM at 60 psi) — no slow trickle
- Installation: Installs to your existing faucet in under 10 minutes (works with standard and dedicated setups)
- Operating Pressure: 10–125 psi
- Operating Temperature: 35–100°F (1.6–37.7°C)
Trusted by Leaders
Purely partners with leading creators, businesses, and organizations to advance water awareness, empower communities, and deliver innovative filtration solutions.
VANESSA COSTANZO
Natalia Bielecki
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Katherine Garbarino
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Trusted by experts. Backed by community.
Vanessa Costanzo
Trainer & CEO
Rhonda Massad
Owner of West Island News
"Definitely a must-have in every home. Efficient, cost-effective, and better for the planet. No brainer."
Natalia Bielecki
Office Manager at Clinique Ophtalmo MTL
"Water is a huge part of my life. I use the filtration system every day definitely a must-have for everyone."
Katherine Garbarino
Owner of KGMTL
"I have one in my kitchen and bathroom sink. It’s an essential part of my wellness routine."
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Melanie McKell
Owner of extensions MTL
"Unfiltered water can seriously affect the quality of our hair and skin. I definitely recommend a Purely filter for both drinking and showering."
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Angela Lucia
Owner at Coiffure Blunt
"Our entire salon is filtered, and our clients have definitely noticed a difference."
Ivana Gentile
Award Winning Stylist & Colorist
"Highly recommended for haircare. Clean water is the foundation of strong, healthy hair."
Francesco Feudale
President at Plomberie Urgence Montréal (PUM)
"Great systems happy to be working with Purely as an installation partner."
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2-Year Filter Life
Lasts up to 60,000 liters, reducing replacements and providing hassle-free pure water for longer.
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Coffee
Better water means better flavour. Smoother, richer, and more balanced taste.
Fruits & Vegetables
Rinse away contaminants and preserve freshness with cleaner water.
Pets
Give your pets the same quality water you drink, pure safe, and healthy.
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Maintains Full Water Flow
Whether installed on your main faucet or designated spout, Purely’s Fiber Technology prevents channeling, maintaining strong, consistent water flow for the entire life of the filter
Our Technology
Our filtration media is independently tested, and certified by NSF, SGS, & WQA*. We use the highest-grade materials to ensure lasting purity and performance.
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Certified
NSF
National Sanitation Foundation
Certified
SGS
Société Générale de Surveillance.
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Certified
WQA
Water Quality Association
*WQA certification is applicable specifically to the filter media used in the P1 Under-sink model.Our systems utilize independently tested and certified filter media. Please note that while formal certification applies specifically to the filtration media, the system housing has been independently tested to meet the rigorous standards established by these certifying bodies.
4 World Class Stages
Designed with advanced fiber technology and world-class certifications, it removes harmful contaminants while preserving the natural minerals your body needs. Sleek, compact, and easy to install in under 10 minutes
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PP5UM
5-Micron Polypropylene
Fiber Technology
Activated Carbon Fiber
KDF Technology
Kinetic Degradation Fluxion
Filtersorb SP3
Scale Prevention
Why Fiber Technology?
Fiber technology solves channeling through its even, parallel pore structure. Each fiber allows water to spread uniformly across the surface, maximizing contact time and maintaining consistent purity thorughout the filter's lifespan.
Consistent Filtration
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Higher Surface Area
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Compact Size
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Higher Purity
See For Youself
Compare Fiber Technology to other alternatives
ACF
Others
GAC/PAC Filters
Size/Form Factor
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Replacement Longevity
Adsorption Speed
Environmental Impact
Filtration Consistency
Maintenance / Clogging
Surface Area
A checkmark indicates Purely outperforms in that category. Results are based on third-party testing and published data comparing Activated Carbon Fiber (ACF) to conventional carbon filters.
Plug & Play Effortlessly
Installs in under 10 minutes and replaces in 60 seconds. Simple twist-off design, no tools, no plumber needed.
Frequently Asked Questions
We’ve answered the questions that matter most, so you can make the switch to cleaner water with confidence.
What is the filtering accuracy of the membrane (in microns)?
The P1 filter media reduces contaminants down to 0.5 microns in size. With our attached UF post-filter, the micron reduction size goes down to 0.01 microns. For more information, please don't hesitate to reach out!
How do your products compare to other companies?
Unlike traditional water filters, Purely uses activated carbon fiber (ACF) as its main filter media. ACF features a perfectly parallel structure designed to operate more efficiently than traditional filters, offering an increased surface area, a smaller filter size, more advanced adsorption, and a higher capacity.
How do I know when to change my P1 Under-Sink Filter?
How do I know when to change my P1 Under-Sink Filter? The P1 is designed to last up to 2 years or 60,000 liters, depending on household size and water quality. See our Capacity Guide in the footer for more details.
Do you install the filters?
The P1 Under-Sink Water Filter is designed for DIY installation with little to no plumbing knowledge required. You can refer to our installation video for guidance. If you prefer, you can also contact one of our associated plumbing companies for assistance.
Do the replacements have a limited life?
For unused, sealed cartridges, we recommend a maximum shelf life of 3 years when stored in a cool, dry, and bacteria-free environment.
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Need help choosing the right water filtration solution?
Our friendly water specialists are here to help, schedule a call at a time that works for you.
Frequently Bought Together
P1 Replacement Cartridge
15.99$CAD
19.99$
S1 Replacement Cartridge
15.99$CAD
19.99$
Product Specifications
Filter Life
Up to 60,000 liters or 2 years, depending on household size and water quality.
Flow Rate
Matches the flow of a standard kitchen faucet (~2 GPM at 60 psi, no slow trickle.
Installation
Installs to your existing faucet in under 10 minutes (works with standard and dedicated setups).
Operating Pressure
10–125 psi
Operating Temperature
35–100°F (1.6–37.7°C)
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30 Days of Purely,
Risk-Free.
Experience Purely risk-free for 30 days. If you don’t taste the difference, we’ll give you a full refund no questions asked.
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Get 10% Off Your Order Now
Make the effortless decision to upgrade your most essential input; your water. Your purchase helps bring safe water to communites in need, while giving your home cleaner, healthier water every day.
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