WASP W-30 Range

w 30WASP Fuel Filters offer a new cost effective range of primary filtration equipment for marine, heating, industrial and transport applications. The problems that can occur due to water and sediment in fuel are well known and WASP Filters offer a wide choice of options to cover most requirements. All metal bowl units meet and exceed the requirements of ISO 10088 Annex B. Our standard model is a 3/8" BSP port, metal bowl with 100 micron.



  • Flow rates up to 1.6 lit/min
  • 1/4'', 3/8' and 1/2" BSP connections
  • 15, 60, 100 and 300 micron cleaning
  • LM6 grade aluminium filter heads with reversible stainless steel bracket & bolts
  • Powder coated aluminium filter heads for corrosion prevention & long service life
  • ISO10088 metal bowl

How does it work?

1. Separation: 
The incoming flow of fuel oil changes velocity and direction, reducing the possibility of further reduction of any water droplets present through impact.

2.  Coalescence:  
This takes place on and just below the flow dispersion member allowing the separated water to descend to the bottom of the filter bowl.

3. Filtration:  
The fuel finally passes through the stainless steel filter element. This removes all particulate above 100 micron still suspended in the fuel after the separation process.


Product Range

W-30 range Filtration (microns) Details
W-30STM/14/0015P 15mic paper 1/4” Ports, Metal bowl
W-30STM/14/006 60mic stainless steel
W-30STM/14/01 100mic stainless steel
W-30STM/14/03 300mic   galvanised steel
W-30ST/14/0015P 15mic paper

1/4 Ports,

Clear bowl

W-30ST/14/006 60mic stainless   steel
W-30ST/14/01 100mic stainless steel
W-30ST/14/03 300mic   galvanised steel
W-30STM/38/0015P 15mic paper 3/8” Ports, Metal bowl
W-30STM/38/006 60mic stainless   steel
W-30STM/38/01 100mic stainless steel
W-30STM/38/03 300mic   galvanised steel
W-30ST/38/0015P 15mic paper 3/8” Ports, Clear bowl
W-308ST/38/006 60mic stainless   steel
W-30ST/38/01 100mic stainless steel
W-30ST/38/03 300mic   galvanised steel
W-30STM/12/0015P 15mic paper 1/2” Ports, Metal bowl
W-30STM/12/006 60mic stainless   steel
W-30STM/12/01 100mic stainless steel
W-30STM/12/03 300mic   galvanised steel
W-30ST/12/0015P 15mic paper 1/2” Ports, Clear bowl


Spares and options

W-30 range options
W-70358 W-30 range mounting bracket and screw
W-60200/0015P Replacement 15   mic paper element
W-602000/006 Replacement 60 mic pleated stainless steel element
W-60200/01 Replacement 100   mic pleated stainless steel element
W-60200/03 Replacement 300 mic pleated galvanised steel element
W-3203 Gasket kit
W-3203V Viton gasket kit


Install / Servicing



Carefully follow the flow direction shown by an arrow on the filter. The filter can be installed in any position although it is recommended to fit it vertically with the bowl pointing downwards in order to facilitate the separation of the water traces and the deposit of the filtered impurities.



Cleaning the filter is carried out by unscrewing the central bolt and then unscrewing the bowl. Carefully wash the filtering element with clean diesel, gas-oil or gasoline. Remount the unit and check that the seals are integral and well placed. Paper elements should be replaced as they cannot be reused, (see above spares). Water can be drained by opening the bleed screw on the lid and then the water drain at the bottom of the bowl.

See the product servicing and support page

Technical Spec

  • Maximum operating pressure 2bar
  • Max operating temp (metal bowl) 90 deg C
  • Max operating temp (plastic bowl) 50 deg C
  • Compatible with diesel and heavy oil
  • Optional viton seals
  • Optional clear bowl 



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