01
Compatibility approach
We are designing for the standard 1/2 inch shower-arm thread common in European bathrooms, rather than claiming to fit everything. Specific guidance will be published before launch.
Currently in development
VANNR ONE
A more considered filtered showerhead for European bathrooms.
VANNR ONE is currently in development. Final compatibility, cartridge life and filtration performance will be published after testing of the finished production configuration.
Concept visual. Final product design may change.
Product overview
VANNR ONE is a filtered showerhead being developed for common European bathrooms. It replaces the showerhead already on your wall, screwing onto the same standard shower arm, and holds a replaceable filter cartridge inside the head.
Everything described on this page is either a concept, a current design target, or pending verification. Nothing here is a tested performance claim. We would rather publish less now and publish something true later.
Current design targets
What we are designing towards.
Every row is a current design target for a product still in development. None is a tested performance claim. Final figures will be published after independent testing of the production configuration.
| Area | Current target |
|---|---|
| Exterior | Brushed stainless steel housing |
| Installation | Tool-free, replaces your existing showerhead |
| Connection | Standard 1/2 inch shower-arm thread, pending confirmation |
| Cartridge | Replaceable core inside the head |
| Replacement | Approximately quarterly, pending testing |
| Flow | Pressure-conscious spray design |
| Claims | Based on final independent testing |
| Availability | Founding waitlist only |
Approach
How VANNR ONE is intended to work.
02
Installation concept
Unscrew the old head, hand-tighten VANNR ONE onto the same arm. Final installation instructions will reflect the production hardware.
03
Cartridge concept
The head opens so the internal core can be replaced. Replacement rhythm depends on usage and final test conditions.
We will not call VANNR ONE universally compatible. It is designed for fixed wall-mounted shower arms, not handheld-only installations.
Cartridge concept
One part you replace. One part you keep.
The housing is designed to stay on the arm. The core is designed to be swapped. We are testing how long that core should last before we tell you how long it lasts.
Concept visual. Final product design may change.
Testing and claims
A certificate for a different filter, a different cartridge or a different test condition is not proof for the product a customer receives.
What VANNR will test
Spray quality and flow under normal household pressure. Seal integrity at the shower-arm connection. Cartridge life under a defined test protocol. Filtration performance of the final production configuration, by an independent laboratory.
What VANNR will not claim
That it softens water. That it treats any medical or skin condition. That it removes any specific substance—chlorine, calcium, magnesium, heavy metals, bacteria or microplastics—until we have independent evidence for the product you would actually receive.
What we will publish
The test conditions, the laboratory, the configuration tested, and the limits of what the result means. Including the parts that are less flattering.
Development
Where VANNR ONE is right now.
We publish stages rather than dates. A date we cannot keep is worse than no date at all.
- Product architectureCompleteHousing form, cartridge interface and connection strategy.
- Supplier sample evaluationCurrent stageComparing candidate manufacturers and sample hardware.
- Pressure and leak testingFlow behaviour and seal integrity under household conditions.
- Filtration testingIndependent testing of the production configuration.
- Beta installationsReal bathrooms, real routines, real feedback.
- Final production decisionGo or no-go, published either way.
- Founding launchFounding-list members first.
Founding list
Be first, and help decide.
Founding-list members get first access, development updates, finish voting and founding launch pricing.
No payment today.
Questions
About the waitlist.
No. There is no checkout, no cart and no payment on this site.
VANNR ONE is still in development. Founding-list members will be told the expected launch price and the founding price before anyone else.
It is stored in Shopify as a marketing contact, used to send development and launch emails, and nothing else. You can unsubscribe from any email.
Then we will say so and explain why. No payment has been taken, so there is nothing to refund.