Unique fuel-stop filter range

w 15fsWhen water level reaches the pre-determined level, the flow of fuel is halted. This offers a safe way to ensure water in fuel contamination doesn’t reach your engine.

The internal precision machined float ensures only fuel passes; it is free to move within the filter and as the water is separated, will float on that water content collecting in the bowl.

The W-15FS range does not offer particulate filtration, hence there not being a micron rating next to the unit's details above, however engine protection from water content is unparalleled in such a compact form.

Need help selecting a filter?

See our guide to help you select the most suitable filter for your needs.

Technical Support

How it works

See how the Separ filter works to separate water and particulate from fuel. 

SWK2000 flow diagram transparancy

How to Order

Call or email us to place your order. We accept ALL major credit and debit cards, bank transfer and also PayPal. 

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Expert advice

Unsure which spare parts you require? Or if a Separ filter will meet your requirements? 

Talk to our expert team. Call 01923 276 007



Delivery options

We have a wide range of shipping options available to suit your destination and budget.



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Contact Us

3 Kingley Park, Station Road, Kings Langley, Herts, WD4 8GW

Tel: +44 (0)1923 276007

Fax: +44 (0)1923 267463

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Here to Help

Product guides

Fuel Specs


Selecting a Filter