Slimline Tricklevent

The Slimline Ventilator will provide Trickle Ventilation in accordance with the Building Regulations 2000: Part F: Approved Document F1 October 2010 and Scottish Building Regulations October 2011 Standard 3.14.

The product is specifically designed for “Through Profile” PVC-U applications using a 10 mm routered slot, and is available in two sizes. All ventilators are “Clip” fixed with the advantage of rapid fitting to profiles.

The products key features are as follows:

  • Spring Clip fitting (No Screws) (Saves over 1 minute per window to install)
  • Unique closure mechanism provides for adjustable ventilation with a positive action
  • BBA and LABC Certification on most versions
  • Sash window application – “Offset” clips are available
  • Clip fixed so no end caps (to be lost)
  • Available in 100’s of colour options and combinations

The product consists of an internal ventilator with adjustable closures to regulate incoming air flow and an external canopy with integral fly screen.

Internal ventilator
This is injection moulded in PVC-U, with UV resistant Acetal spring clips that enable the ventilators to be firmly snapped into the routered slot in the profile. The installation of this vent provides time cost savings when compared with ‘screw fitting’ alternatives.

The closure plate has a positive action and multiple units in the 4000 version provide control of airflow.

A variety of custom fixing clips are available to offset the ventilator vertically relative to the 10mm slot for applications such as sash windows, where space is at a premium. These give offsets of +/- 2mm.

External canopy
This is complimentary to the interior unit and features the same materials and fixing methods. The canopy has an integral fly screen. A flat grill is available.

Materials of construction
Internal and external units are primarily moulded in UV stabilised PVC-U. The spring fixing clips are in UV stabilised Acetal. Suppliers data sheets for these polymers are available on request.

Vent typeE.Q.A. (Equivalent area)Geometric free area
Slimline MK3 20001480mm²2000mm²
Slimline MK3 40002590mm²4000mm²
Vent typeValues D.n.e.w.
Slimline MK3 2000 Closed40dB
Slimline MK3 2000 Open37dB
Slimline MK3 4000 Closed35dB
Slimline MK3 4000 Open33dB

Slimline 2000 Vent Technical Detail


Slimline 4000 Vent Technical Detail


Slimline 2000 Detail


Slimline 4000 Detail

Part NameInternal dimensionInternal weightExternal dimensionExternal weight
Slimline MK3 200018mm x 242mm Depth 20mm40g18mm x 242mm Depth 20mm31g
Slimline MK3 400018mm x 455mm Depth 20mm74g18mm x 455mm Depth 20mm55g

For all installation instructions please visit the below page


Slimline Vent 2000 & 4000


To see all of our colours please visit the below page


To see all of our latest certifications please visit the below page


To see all of the latest building regulations please visit the below page


All tricklevent colours are available boxed as bagged sets or bulk packed “pick n mix”.

Bagged sets – The vent (internal) and canopy (external) are bagged and are both the same colour, normally 50 sets per box.

Benefit; Sets are easy to pick and ship with each window. Typically, vents can be taped to windows or added to the hardware box that accompanies each delivery.

Colour on white sets – The vent (internal) and canopy (external) are sold as sets (white internal vent with a coloured external canopy), normally 50 sets per box.

Benefit: No need to buy two sets of vents, (a white set and a colour set) then dispose of the excess parts, so half price?

Specials – If you need a particular colour mix, these are normally made to order with 50 bagged sets per box. Contact customer service for advice on availability.

Bulk packed – The vent (internal) or canopy (external) are sold separately (one colour only), normally 100 parts per box.

Benefit: This allows for a “pick n mix” option on the production line. This allows more effective purchasing on volumes and “special” colours whilst being easily adaptable for colour on white. Buy more of the colours you use most of at better prices and carry minimal stocks of low volume use or special colours.

For technical and reproduction reasons there maybe slight visual differences of colours shown on this page. Free sample plaques are available to be ordered from the Glazpart webstore.

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For more information on our products and services, or to talk to our sales team about your next project, contact us or fill in the form and we’ll get in touch.

  • +44 (0) 1295 264 533
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Glazpart Ltd
Wildmere Ind Est
OX16 3JU