300mm White Trickle Vents (internal and external fittings)

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VENT-300-White (RWS251500) (5055621405517)
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  • White Trickle Vents 300mm
  • White Trickle Vents
  • Trickle vent Tech Spec
  • Trickle Vents Sizes and Specification
  • 300mm White Trickle Vents
  • 300mm White Trickle Vents _ RW Simon
  • Brown Trickle Vents
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Trickle vents for UPVC windows and doors from RW Simon

300mm trickle vents in WHITE

Also available in Brown, Tan, Brown/White or Tan White


 300mm:   1 x internal canopy, 1 x external canopy, and fixing screws

Other lengths available: Click here to see other sizes

400mm - White, Brown, Tan, Brown/White or Tan White            

595mm - White only.    Note: this will consist of 4 x 300mm section with 2 centre joining pieces.                   

795mm - White only.     Note: this will consist of 4 x 400mm section with 2 centre joining pieces.                     





Trickle window ventilators ideal for both timber and PVC-u. Made from U.V. stabilised PVC-u, durable, easy to fit and fully tested. Internal canopy has a moveable flap to adjust and control airflow rate.



Information from the manufacturer


Technical Specification




  • Equivalent air rates of 2500EA and 5000 EA as required by approved document "F" 2006 for England & Wales.
  • A robust smooth slim elegant rounded design.
  • Snap on quick fit end caps.
  • Positive open and close action.
  • 3 colour options; standard white, dark brown (mahogany), tan
  • tan (light oak) and cream (RAL 1015).
  • Can be fitted to give updraft or down–draft.
  • Suitable for PVCu, timber and aluminium windows.
  • Sleeves available to ensure full compliance with BS7412:2002 .


Design Criteria

  • Tested to BS 13141-1:2004 - Equivialent area figures as required by approved
  • document "F" 2006.
  • Tested in accordance with BS EN 1026 & 1027:2000.
  • Manufactured from a 'lead–free' UV stabilised high quality PVCu.
  • Achieves a water tightness limit of 400 p.a.
  • Positive open and close action.



  • Watertightness - 400 pa.
  • Independently acoustically tested in accordance with BS EN20140-10:1992,
  • ISO 140-10:1991.




Tech Spec


For the full measuring guide click Here


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Additional Information

Delivered from just £1.86
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14 Reviews

  • 5
    300mm White Trickle Vents (internal and external fittings)

    Posted by PG on Feb 04, 2020

    Arrived quickly. Used to vent an old porch which was damp. Drilled series of 10mm holes in upper wooden window frame and fitted these. Excellent value, would buy again. Thanks

  • 5

    Posted by Unknown on Jul 17, 2017

    these were to replace two internal vents that dissappeared overnight! only needed the internal bit but for the price couldnt complain and have spaer incase the outside dissapears too. excellent price, excellent delivery time. no complaints at all

  • 5
    Excellent product

    Posted by Doug on Jan 18, 2016

    Just so easy to install, good value, but above all it cures the condensation on the windows.

  • 5
    Fit One Today

    Posted by DIY Geof on Jan 12, 2015

    Good quality product, easy to fit and I've found very effective. First one fitted some months ago in my porch which was plagued by a damp smell, however that's gone now, Fitted the second in a newly fitted bedroom window, hope in reduces condensation there, I'm sure it will. The boss wishes they had an insect mesh fitted !

  • 4
    Good product and easy to fit

    Posted by A Rogers on Jul 15, 2014

    Nice clean looking vents. Slightly smaller than the ones i took off but fitted perfectly. Very easy to fit and simple operation.

  • 4

    Posted by Unknown on Jun 16, 2014

    rapid delivery,good product

  • 4
    Great, super, smashing

    Posted by Paul on Jun 10, 2014

    Rather than a retro fit, there were a first fit for my windows. Good product good price, good delivery- all good. Thanks.

  • 5
    trickle vents

    Posted by BrianBirchall on Sep 30, 2013

    very good a dream to fit for a DIYER. top equipment from this top company

  • 5
    fantastic product

    Posted by Unknown on Jul 05, 2013

    Very impressed with this product, easy to fit and does the job it is meant for - look forward to seeing if it helps with condensation and humidity levels during the winter

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