Skip to product information
1 of 7

Clearstream Flow

Clearstream Flow

Inline Shower Filter System

Your shower water isn't as clean as it looks.

Helps reduce chlorine, heavy metals, and impurities that dry out your skin and hair. FlowCore 7-stage filtration designed to improve water quality at the point of use.

Easy installation. No plumber required.

Fits any standard 1/2 inch connection. Each cartridge lasts 3 to 4 months. 24 month warranty.


Limited stock this week
One-time Purchase
  • Everything included to start filtering
  • No ongoing commitment
Subscribe & SaveSave 30%
$84.00 $120.00
When What you get Price
Today Flow system + 1 filter $84.00
Every 4 mo Replacement filter $59.99
  • Automatic filter replacements
  • Pause or cancel anytime
Add Premium Swivel Adaptor Point your water exactly where you need it. No more awkward angles + $20.00
Premium Shower Swivel Ball
Free Delivery
24 Month Warranty
Easy Installation

What's included?

Everything you need to get started.

4 Month Set
• Clearstream Flow metal body
• 1 filter cartridge (up to 4 months of filtration)

12 Month Set
• Clearstream Flow metal body
• 3 filter cartridges (up to 12 months of filtration)

Everything you need to start filtering from day one.

Will it fit my shower?

Clearstream Flow uses a standard 1/2 inch thread connection, which fits the vast majority of showers in New Zealand and Australia.

Works with handheld hoses, fixed rain heads, and wall-mounted shower arms.

Is it just for showers?

No, the Flow fits any standard 1/2 inch threaded water connection, so it works in more places than you'd expect.

Showers
Handheld hoses, fixed rain heads, wall-mounted arms.

Bathtubs
Connect to your bath tap or hot water outlet. Great for kids with sensitive skin and eczema.

Basin taps
Install under the basin for chlorine-free water to wash your face.

Garden & outdoor
Connect to an outdoor tap for chlorine-free water for pets, fish tanks, or watering plants.

FlowCore filtration system

Every drop passes through seven layers of filtration before it reaches your skin and hair.

1. 304 stainless steel pre-filter (1 micron)
Catches sediment, rust, colloids, and large particles before they reach the core media.

2. Calcium sulfite
Neutralises chlorine and chloramine on contact.

3. Far infrared mineralized spheres
Enriches water with beneficial trace minerals and increases alkalinity.

4. Activated coconut carbon
Reduces odours, VOCs, pesticides, and organic contaminants.

5. KDF copper-zinc media
Targets heavy metals including lead, mercury, copper, and cadmium.

6. Far infrared mineralized spheres
Second stage of mineral enrichment for balanced water quality.

7. 304 stainless steel post-filter (1 micron)
Final barrier for any remaining particulate.

How often do filters need replacing?

Each filter cartridge is designed to last approximately 3 to 4 months under normal household use. Bigger households with more people showering daily may find filters closer to the 3 month mark.

That's why we offer a 12 month set with 3 cartridges included upfront, so you're covered from day one without worrying about reordering.

Premium metal body 🏆

Built from aluminium alloy, not the cheap plastic or electroplated housings that crack and peel over time. Inside, the filter uses medical-grade 304 stainless steel mesh for pre and post filtration.

Handles hot water up to 60 degrees and pressure up to 125 PSI without breaking a sweat. Built to last in daily shower conditions, not just look good on arrival.

Reduces chlorine in shower water
Helps reduce chlorine, chloramine, and chemical byproducts before they reach your skin and hair.
FlowCore 7-stage filtration
304 stainless steel mesh, activated coconut carbon, KDF media, calcium sulfite, and far infrared mineralized spheres.
Easy installation
No plumber required. Threads onto any standard 1/2 inch connection.
Premium metal body
Aluminium alloy housing with medical-grade 304 stainless steel internals. Not plastic.
View full details
Selected Variant Image
Clearstream Flow
4 Month Set
Regular price $120.00
Regular price $150.00 Sale price $120.00

What's Really In Your Shower Water?

Most of us don't think twice about the water we shower in. Here's what the research says.

0 %

Of NZ homes receive chlorine-treated water

0 %

Of NZ water pipes are in poor or very poor condition

0 min

Shower = more chlorine absorbed than drinking 8 glasses of water

Source: Taumata Arowai (2024) / Australasian Journal of Water Resources (2025) / American Journal of Public Health, Vol. 74 No. 5

The Hidden Cost of Unfiltered Water

Dry Skin
Dry Skin Strips your skin's natural moisture barrier
Hair Damage
Hair Damage Less shine, more breakouts and split ends
Eczema
Eczema Linked to flare-ups in children and adults
Steam Inhalation
Steam Inhalation Hot showers turn chlorine into gas you breathe
Colour Fade
Colour Fade Reacts with melanin and shifts hair colour
Skin Aging
Skin Aging Free radicals accelerate collagen loss

From Your First Shower

Dry skin

Supports natural moisture

Hair damage

Helps protect softness

Eczema

Gentler on sensitive skin

Chlorine

Removed from your water

The Flow Effect

Hair Skin Wellness Hydration Colour
Softer, Less Tangled Hair
Hair Softer, Less Tangled Hair
Clearer Skin, Fewer Breakouts
Skin Clearer Skin, Fewer Breakouts
Relief for Eczema & Sensitive Skin
Wellness Relief for Eczema & Sensitive Skin
Better Moisture Retention
Hydration Better Moisture Retention
Protects Hair Colour
Colour Protects Hair Colour
Softer, Less Tangled Hair
Hair Softer, Less Tangled Hair
Clearer Skin, Fewer Breakouts
Skin Clearer Skin, Fewer Breakouts
Relief for Eczema & Sensitive Skin
Wellness Relief for Eczema & Sensitive Skin
Better Moisture Retention
Hydration Better Moisture Retention
Protects Hair Colour
Colour Protects Hair Colour
★★★★★

"I was skeptical but my hairdresser actually noticed the difference. Way less breakage."

★★★★★

"My skin used to feel tight after every shower. Now it actually feels hydrated."

★★★★★

"Our 3 year old's eczema has calmed down so much since we installed this."

★★★★★

"Cheaper than the creams I was buying every month to fix what the water was causing."

★★★★★

"Took literally 2 minutes. My partner didn't believe me until he saw it."

★★★★★

"I thought shower filters were a gimmick. Honestly didn't expect much but the difference in my hair alone sold me."

FlowCore 7-stage filtration

What Clearstream Flow Helps Reduce

Chlorine, Chloramine & Chemical Byproducts

Calcium sulfite neutralises chlorine and chloramine on contact, while activated coconut carbon and KDF copper-zinc media work together to reduce chemical byproducts including trihalomethanes. This helps protect your skin and hair from the drying, irritating effects of chlorinated water.

Heavy Metals (Lead, Mercury, Cadmium, Copper)

KDF copper-zinc media targets soluble heavy metal ions including lead, mercury, copper, nickel, cadmium, and aluminium that can be present in older plumbing systems and municipal water supplies.

Sediment, Rust & Suspended Solids

Dual 304 stainless steel mesh filters at 1 micron bookend the cartridge, catching sediment, rust, dirt, and particulate matter before and after the core filtration media.

Odours, VOCs & Organic Contaminants

Activated coconut carbon absorbs volatile organic compounds, pesticides, and organic contaminants while removing unpleasant odours from your water.

Mineral Enrichment

Far infrared mineralized spheres enrich your water with beneficial trace minerals and increase alkalinity, contributing to softer feeling skin and more balanced water quality.

Frequently Asked Questions

Ordering & Support

How long does delivery take?

We offer free tracked delivery on all orders within New Zealand and Australia.

NZ delivery time:
4-8 business days.

Australia delivery time:
7-9 business days.

Tracking is provided once your order ships.

Will it reduce my water pressure?

No noticeable pressure drop. Clearstream Flow maintains a flow rate of 10-15 L/min, which is comparable to showering without a filter.

Do I need a plumber to install it?

No. Clearstream Flow threads directly onto any standard 1/2 inch water connection by hand. For most showers, you simply unscrew your shower head or hose, thread the Flow on, and reattach. Some setups may benefit from the optional swivel adaptor for a better angle.

How do I replace the filter cartridge?

Unscrew the top cap of the filter housing, remove the old cartridge, and drop in the new one. No tools needed. Takes under a minute.

What if I have an issue with my order?

If something isn't right, please contact us within 14 days of delivery. We'll review your request and work toward a fair outcome in line with our returns policy.

Is there a warranty?

Yes. Clearstream Flow comes with a 24 month warranty covering defects in materials and workmanship. If something isn't right with your unit, get in touch and we'll sort it out.

Does it work with my shower type?

Clearstream Flow uses a standard 1/2 inch thread connection, which fits the vast majority of showers in New Zealand and Australia. Works with handheld hoses, fixed rain heads, and wall-mounted shower arms. It also fits bathtub taps, basin taps, and outdoor connections.

Can I use the Flow on my bathtub?

Yes, the Flow fits any standard 1/2 inch connection, including bathtub taps and hot water outlets. Install it between your tap and hose for chlorine-free bath water. Great for kids with sensitive skin and eczema.

Can I use it with hot water?

Yes. Clearstream Flow is designed for use with hot water up to 60 degrees Celsius and withstands pressure up to 125 PSI. The aluminium alloy housing is built for daily use in hot water environments.

How do I know when the filter needs replacing?

Most households get 3 to 4 months per cartridge. Signs it's time to replace include a noticeable drop in water flow, a return of chlorine smell, or the water not feeling as soft on your skin and hair. We recommend setting a reminder so you're never caught out.

Can I take it with me if I move?

Absolutely. The Flow threads on and off by hand with no permanent changes to your plumbing. Perfect for renters, just unscrew it, pack it, and install at your new place in seconds.

How can I contact you?

You can reach us via email (hello@clearstream.nz) or by using the form on our Contact page. We aim to respond within 24 hours.

Customers Say