← Buyer GuidesCertifications for Selling RO Systems in Europe
Europe regulates through CE marking plus substance and food-contact rules. The exact directives depend on your product's features — there is no one-size-fits-all certificate list.
Key points
- CE marking: typically involves the Low Voltage Directive and EMC Directive for powered RO systems; the Declaration of Conformity must name the directives applied.
- RoHS: restricts hazardous substances (lead, mercury, cadmium, etc.) in electrical equipment — standard for powered units.
- REACH: chemical substance obligations up the supply chain; your factory should be able to provide SVHC declarations.
- (EC) 1935/2004: food-contact materials framework — wetted plastics and seals need compliance documentation.
- WRAS (UK) is voluntary but strongly valued by British buyers and water utilities.
- Like the US, certificates are model-specific and must be renewed — track expiry dates.
Action checklist
- Identify which CE directives apply to YOUR configuration (pump? UV? smart display?).
- Collect the Declaration of Conformity and the test reports behind it.
- Get RoHS test reports or supplier declarations for the bill of materials.
- Request food-contact compliance docs for all wetted materials.
- For the UK, decide whether WRAS approval is worth the timeline for your channel.
- File everything per model — auditors and buyers both ask per model, not per factory.
Common questions
Can I use the factory's CE certificate for my private label?
Sometimes — if the product is technically identical and the factory agrees in writing. But the Declaration of Conformity names the responsible party; many brands end up re-issuing under their own name. Clarify this before you print packaging.
Do I need WRAS for the whole EU?
No — WRAS is UK-specific and voluntary. But if the UK is a target market, buyers there treat it as a strong trust signal, similar to how NSF functions in the US.
Related reading
A note on honesty. CWS provides sourcing and QC services for water purification products. This guide is general information for overseas buyers — not a guarantee of any outcome. We don't promise the lowest price in China, and we don't promise zero defects. What we do promise: written inspection criteria, lot traceability, and telling you when something is outside what we can verify.