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The S1 Advantage

Consistency

Fibre helps reduce channeling by creating a more consistent filtration structure, allowing water to make better contact with the media instead of passing through uneven gaps.

Efficiency

FO Technology increases the cartridge's available surface area and helps reduce internal media waste, allowing more of the filter to be actively used throughout its lifetime.

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Sleek Design

Sleek, minimal, and thoughtfully designed to enhance the look of any shower with a clean, modern finish.

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Installation

Detailed installation guides give you the ability to seamlessly install your filter in less than 2 minutes.

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Cellular Hydration

By reducing chlorine and heavy metals at the source, the S1 helps create a cleaner shower foundation that supports your skin’s natural moisture barrier.

User-Friendly

User-Friendly

The S1 combines smart design with a user-friendly experience to ensure seamless operation throughout your filter’s lifetime.

Low Maintenance

Low Maintenance

Designed for convenience, S1 cartridge replacements can last up to 1 year or 45,000 liters.

Real people. Real results.

A community around better water and better health.

A schematic close-up of the Purely S1 Shower Filter handle in profile, water cascading from the head with a glowing blue spiral inside the transparent cartridge body.

Performance & Experience Guarantee

We’re so confident you’ll notice a difference in your shower experience that if your S1 does not perform as intended, you can return it within 30 days of purchase.

Hair Color

Shower water can affect the look and longevity of color-treated hair, especially lighter shades like blond. Harsh water exposure can contribute to fading, dullness, and unwanted discoloration over time.

Skin Conditions

Shower water that leaves the skin dry or irritated can make sensitive skin feel worse, especially for people with eczema-prone or psoriasis-prone skin.

Hair Texture

The water you shower with affects how your hair feels after every wash. Harsh or unbalanced water can leave hair feeling dry, rough, frizzy, or harder to manage.

Skin Health

Your skin is exposed to shower water every day. Water that disrupts the skin’s natural balance can contribute to dryness, tightness, and irritation.

Install it Once.
Feel it Everyday.

01.

Purchase your S1

Get everything you need to protect the water you shower in, helping support softer-feeling skin, smoother hair, and a cleaner daily routine.

02.

Install your filter

Attach the S1 directly to your shower in minutes with a simple, tool-free installation designed to fit seamlessly into your existing setup.

03.

Activate on the app

Connect your S1 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.

A hand holding an iPhone displaying the Purely Water Report, with floating panels for Lead, Turbidity, and Potassium readings

Learn about your tap water.

We built a tool to help you understand what's in your tap water, what it means, and how to choose the right treatment for your home.

Two-Minute Installation

Upgrade your shower in minutes with a simple, tool-free installation. The S1 connects directly to your shower hose, making setup fast, clean, and easy to follow.

A Purely S1 shower handle with its cartridge being inserted into the base on a soft light grey background.

Fast, Simple Replacements

Fresh filtered water is easy to maintain. When it’s time to replace your cartridge, simply open the handle, swap the cartridge, and get back to your regular shower routine.

Rated 4.8 / 51,200+ reviews

Hear From Homeowners

Get Started with S1

Explore the different ownership plans for the S1 Shower Filter.

S1 Protection Bundle

4.8 · 1,284 reviews

S1 Shower-Handle

Starting at $169Affirm financing availableAccepted payment methods: Amex, Apple Pay, Google Pay, Mastercard, Shop Pay, Visa
  • Cleaner water for your daily shower
  • Helps reduce chlorine, lead, PFAS, VOC’s
  • Better-balanced water for skin and hair
  • Tool-free shower handle installation
  • Fast, simple cartridge replacements
  • Up to 1 year capacity
  • Multi-spray shower experience
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Technical Specifications

Browse the key details behind the S1 system to confirm the right fit for your home, your needs, and the way you use water every day.

S1 Shower-Handle
10 in
5 in
Type
One-stage filtered showerhead equipped with Fiber Optimization Technology
Capacity
45,000 L
Replacement Cadence
Up to 12 months for one to two users
Flow Rate
No reduction in flow
Max Pressure
125 psi
Temperature Range
35 to 115°F (1.6 to 46°C)
Plumbing Connection Size
1/2” (99% of Canadian homes)
Dimensions
10 in × 5 in

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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