"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
4-Stage Drinking Water Filtration System
CA$259.00
The P1 is a 4-stage point-of-use filtration system that connects directly under your sink. Designed to improve taste, smell and purity of your tap water, providing a refined experience directly from your faucet. With a 60,000L capacity, it’s built to comfortably support everyday drinking water needs for households of all sizes typically lasting up to two years before a filter change is needed.
Choose Option
P1 Under-Sink
CA$259.00
- 1x P1 Under-Sink
- 2 Years of Purity
P1 Under-Sink Bundle
CA$259.00
CA$418.00
- 1x P1 Under-Sink
- 1x Replacement Cartridge
- 4 Years of Purity
30% OFF
Flexible financing options available at checkout for approved applicants. See Details.
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Designed to reduce up to 98% of 80+ common tap water contaminants.
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Powered by Fiber Technology for dependable, long-term performance.
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Independently tested filtration media designed to meet world-class certification standards.
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Simple installation with seamless cartridge replacements.
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30-day risk free trial.
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Tested &
Certified
Certified
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Safe & Secure
Payments
Payments
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30 Day
Free Trial
Free Trial
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Benefits
- Refined drinking water with a smoother taste and no odour
- Optimal hydration by retaining essential minerals
- Compact footprint that keeps your counter clear
- Elevates coffee, tea, and cooking experience
- Sustainable alternative to bottled water and plastic waste
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How it Works
- Cold water line connection
- 5-10 minute user friendly installation
- Pure water from your faucet — on demand
- See installation guide for more details
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Box Contents
- P1 Under-Sink (pre-assembled cartridge)
- Adapters + Gaskets
- Water Supply Line
- Drywall Anchor + Mounting Screw
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Specifications
- Type: 4-Stage under sink filtration system equipped with Fiber Technology
- Capacity: 60,000L
- Replacement Cadence: ~2 years under normal household use, ~18 months with higher-than average drinking/cooking volume, ~12 months for large, high-consumption households (e.g. 5+ people)
- Flow Rate: 2 gpm at 60 psi (no reduction in flow)
- Max Pressure: 125 psi
- Temperature Range: 35-100°F (1.7-37.8°C)
- Plumbing Connection Size: 3/8" (~ 99% of Canadian homes)
- Dimensions:
- Height: 13"
- Width: 3.5"
- Depth: 3.5"
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.
up to
98%
Reduction of over 80 known tap water contaminants.
up to
1/2
The size of conventional 4-stage filters.
up to
4x
The capacity of traditional activated carbon filters.
up to
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
Creates a smoother, more balanced cup with better water at the source.
Produce
Cleaner rinsing for fruits and vegetables, from prep to plate.
Pets
Gives your pets the same cleaner, high-quality water you rely on every day.
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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 the Difference
Compare Fiber Technology to conventional 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
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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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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