The Fernox Express Inhibitor Test is available from all major merchants and online plumbing retailers.
For a more convenient purchase, you can use the Stockist Finder on our website to locate a retailer near you.
Visit this comparison page to find the most appropriate test for you.
Explore country-specific availability of Fernox water tests.
Find authorized retailers and stockists in your area.
Got questions? We’ve got answerss.
We are continuously adding more guides and FAQ’s to help you set up on the Fernox App, however if you are unable to find an answer to your question, it’s time to reach out.
Contact Support for assistance, and we’ll help resolve the issue promptly.
