Fernox LP Sterox Water System Disinfectant
Fernox LP Sterox is a water system disinfectant for stored water installations in homes and commercial properties. It targets Legionella, pseudomonas, bacteria and algae. In addition, it penetrates and removes biofilm from the system.
This listing covers one 1-litre bottle, manufacturer code 56609. For other maintenance tasks, browse our water treatment chemicals.
When Should You Use LP Sterox?
Fernox identifies commissioning, alterations and routine system maintenance as occasions for water system disinfection. For example, a system may need attention after a long period without regular use. However, treatment must follow the site’s water hygiene procedure and the current product instructions.
How Much Water Does One Bottle Treat?
One 1-litre bottle treats 300 litres under Fernox’s normal-use dosing guidance. Alternatively, it treats 400 litres when the system remains unused for 24 hours after dosing.
Always follow the recommended dose and contact time. Do not exceed the manufacturer’s dosage rate.
Testing During Disinfection
During treatment, use Fernox LP Sterox Test Strips to check the product concentration. These strips measure disinfectant levels, not the presence of Legionella bacteria. Therefore, follow the required monitoring procedure rather than relying on the water’s appearance.
Drinking Water and Product Safety
You do not need a neutraliser after disinfection. However, Fernox recommends a full flush after treating drinking water systems. This helps remove loosened biofilm before consumption. Always complete the required flushing and checks before returning a drinking water system to use.
Also, read the Fernox product data sheet and safety data sheet before starting treatment.
Use biocides safely. Always read the label and product information before use.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Fernox |
| Product | LP Sterox |
| Manufacturer product code | 56609 |
| Pack size | One 1-litre bottle |
| Application | Stored water system disinfection |
| Formulation | Non-foaming liquid |
| Colour | Colourless |
| Barcode / EAN | 5014551566095 |
Specifications follow Fernox’s product data for LP Sterox 1 Litre.
Why Buy From Kudos Trading?
Kudos Trading supplies genuine Fernox products for installers, maintenance teams and homeowners. Our team can help you identify the right product code before ordering. In addition, you can buy matching LP Sterox test strips from the same supplier.
Frequently Asked Questions
Does Fernox 56609 Include Test Strips?
No. Code 56609 identifies the 1-litre disinfectant bottle. Therefore, order LP Sterox Test Strips separately when required.
Can I Use LP Sterox in Commercial Buildings?
Yes. Fernox specifies LP Sterox for stored water systems in domestic and commercial properties. However, each installation needs an appropriate disinfection procedure.
Is LP Sterox the Same as Fernox F7?
No. LP Sterox treats stored water systems. By contrast, Fernox developed Biocide F7 for underfloor, low-temperature heating and chilled systems. Therefore, choose the product for the application rather than treating the two as interchangeable.
Related Products
- Fernox LP Sterox Test Strips — 50 Pack
- Fernox F7 Biocide — For Heating Systems
- Water Treatment Chemicals
Next Working Day Delivery: Yes, we hold all our products in stock at our 7000 sq ft Nottingham warehouse and at our 3000 sq ft warehouse in Market Harborough and use DPD for a tracked next-day delivery.
Collection Available: You can always collect from our Nottingham location and help yourself to a free tea and coffee.

