"Definitely a must-have in every home. Efficient, cost-effective, and better for the planet. No brainer."
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P1 Replacement Cartridge
CA$159.00
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P1 Under-Sink Bundle
4-Stage Drinking Water Filtration System
CA$299.00
CA$418.00
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 98% of over 80+ common tap water contaminants.
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New Fiber Technology offers smarter and more consistent filtration.
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Independently tested filter media designed to meet world-class certification benchmarks.
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Low maintenance. Lasts up to two years before needing replacement.
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Risk free 30-day trial.
Choose Option
P1 Under-Sink Bundle
CA$299.00
CA$418.00
- 1x P1 Under-Sink
- 1x Replacement Cartridge
- 4 Years of Purity
30% OFF
P1 Under-Sink
CA$259.00
- 1x P1 Under-Sink
- 2 Years of Purity
Note: Monthly prices will be calculated at checkout after you select Affirm.
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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.
Natalia Bielecki
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Katherine Garbarino
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Every Sip Is Exposing You To Hidden Contaminants.
Your tap water may look clear, but chlorine, lead, heavy metals, and microplastics can still get through municipal treatment, potentially accumulating in the body over time and contributing to long-term health risks.
upto
98%
Reduction of over 80 known tap water contaminants.
1/2
The size of conventional 4-stage filters.
upto
4x
The capacity of traditional activated carbon filters.
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100%
Surface area utilization*
Conventional activated carbon filters (GAC/PAC) typically use only about 30% of their media’s available surface area, causing efficiency and capacity to drop quickly over time.
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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 Strong Pressure
Unlike RO (reverse osmosis) systems, the P1 delivers strong, consistent water flow with no pressure drop throughout its entire lifespan.
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2-Year Filter Life
Lasts up to 60,000 liters, reducing replacements and providing hassle-free pure water for longer.
What Our Customers Are Saying
Real stories from people who've experienced cleaner water, better health, and peace of mind.
Rhonda Massad
Owner of West Island News
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."
Plug & Play Effortlessly
Installs in under 10 minutes and replaces in 60 seconds. Simple twist-off design, no tools, no plumber needed.
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Consistent Filtration. Our advanced fiber technology is designed for dependable performance, providing consistent filtration from the first drop to the last.
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Expanded Surface Area. The unique structure of our fiber media provides up to 3x greater surface area than conventional granular carbon, enabling more efficient and effective filtration.
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Superior Impurity Reduction. Our filters are intelligently designed to target and reduce a wide range of common impurities, such as chlorine, VOC’s, pesticides and heavy metals, with high efficiency.
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Compact & Long-Lasting. Our filters are designed to be more compact while offering double the capacity. This means you get clean, great-tasting water with fewer filter replacements.
See For Yourself
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.
Frequently Bought Together
S1 Replacement Cartridge
CA$89.00
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.
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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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