Under-sink filtration

P1 Under-SinkP1 Protection Bundle

4.9 · 842 reviews
$359CAD

The P1 is a 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, lasting up to two years before a filter change is needed.

Simple installation

5-10 minute user-friendly installation with seamless cartridge replacements.

Protection

Designed to reduce 80+ contaminants, including Lead, Chlorine, PFAS and more.

Retention

Retains essential minerals for Optimal Hydration.

Digital Tracking

Capacity tracking in real time, so replacements are never an afterthought.

Protection Bundle

Everything you need for up to four years of clean water and coverage.

Free Canada-wide shipping
30-day satisfaction guarantee
2-year limited warranty4-year limited warranty

Order summary

SystemP1 Under-Sink
Total
$359

Final taxes calculated at checkout. Ships within 1–3 business days.

Backed by our 30-day Pure Promise

Real people. Real results.

Join a community around better water and better health.

Better water for every part of your kitchen.

Cellular hydration

The P1 retains essential minerals your body needs. These minerals improve the taste of your water and act as electrolytes that help your cells absorb and use water more effectively.

Coffee

Reducing chemicals like chlorine and disinfection byproducts can significantly improve the taste of your coffee. At the same time, minerals play a crucial role in extracting flavor from the bean, which is why better coffee starts with better water.

Boiling and cooking

Boiling does not reduce all contaminants. In some cases, it can increase the concentration of contaminants like lead as water evaporates and the total volume of water is reduced, which matters for soups, pasta, tea, and oatmeal.

Produce

We wash produce to remove pesticides, dirt, and cross-contamination, but the water we rinse with matters too. The P1 helps create a cleaner rinsing process so you are not adding excess contaminants back onto your food.

Pets

If you do not drink from your tap, your pet probably should not either. Chlorine and other harmful byproducts can affect the taste of their water and can contribute to long-term stress on certain organs, especially in smaller, more sensitive dogs.

A glowing schematic of the P1 under-sink filter cartridge: a clear cylindrical housing connected to a kitchen tap, with luminous blue and red water streams spiraling through it.

Performance & Taste Guarantee

We’re so confident you’ll notice a difference in your water that if your system does not perform as intended, you can return it within 30 days of purchase.

Drinking Water Reduction Claims

Chlorine

99%

Reduction

Chloroform

98%

Reduction

Lead

98.8%

Reduction

PFOA / PFOS*

98%

Reduction

Cadmium

99.2%

Reduction

Refer to performance data sheet.

Install it Once.
Feel it Everyday.

01.

Purchase your P1

Get everything you need to protect the water throughout your home, from drinking and cooking to bathing, washing, and daily use.

02.

Install your filter

Connect the P1 to the cold water line under your sink for a simple plumber-free install, typically taking 5 to 10 minutes.

03.

Activate on the app

Connect your P1 to the Purely app to activate your system, track capacity in real time, and start monitoring your water quality from your phone.

04.

Enjoy and monitor

Continue using your water like normal, while receiving filter life updates and replacement reminders directly from your phone.

Smaller System.
Smarter Installation.

Detailed installation guides assist you every step of the way, giving you the option to install the P1 yourself in less than 15 minutes.

A P1 replacement cartridge being lifted into the under-sink housing on a black background, with the housing's OUT port visible above.

Replacements in less than two minutes.

Replacing your P1 cartridge is simple. Our guided replacement process helps you swap your filter in less than two minutes without tools or complicated steps.

Rated 4.6 / 52,000+ reviews

Hear From Homeowners

Technical Specifications

Browse the key details behind the P1 system to confirm the right fit for your home, your needs, and the way you use water every day.

Purely P1 Under-Sink Filtration System
13 in
3.5 in
Type
Four-stage under-sink filtration system equipped with Fiber Optimization Technology
Optimal Capacity
30,000 L
Replacement Cadence
Up to 2 years under normal household use
Flow Rate
4 LPM
Operating Pressure
20–80 psi
Temperature Range
35 to 100°F (1.7 to 37.8°C)
Plumbing Connection Size
3/8 in (Compatible with the vast majority of Canadian homes)
Dimensions
13 in × 3.5 in

Get Started with P1

Explore the different ownership plans for the P1 drinking filtration system.

Purely Drinking Protection

4.8 · 1,284 reviews

P1 Under-Sink

From $295Affirm financing availableAccepted payment methods: Amex, Apple Pay, Google Pay, Mastercard, Shop Pay, Visa
  • Clean Water From Your Kitchen Faucet
  • Reduces Lead, Chlorine, PFAS, VOC’s
  • User Friendly Installation
  • No Flow Reduction
  • Filter Tracking with our Mobile Application
  • Up to 2 Year Capacity
  • FO Technology
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FAQ

Need help choosing the right system or protection plan for your home? Our water experts are here to help. Our offices can be reached between 9:00 AM - 8:00 PM EST.

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