Recessed clip-fix slot ventilator

For use on timber windows

The Trykvent is an unobtrusive semi recessed plastic ventilator that fits over a 16mm slot in a timber window.

The Trykvent is specifically designed for high performance timber windows and is ideal for both new build or refurbished situations. It’s available in white, brown or grey.

The Trykvent, when fitted correctly seals extremely well when closed whilst offering a higher EA than most other similar vents available.

For compliance with Building Regulations in England and Wales, the Trykvent 389 provides an Equivalent Area (EA) of 4300mm2 when fitted with the Hi Flow 411 canopy.

System 1 System 2 System 3






Features & Benefits

  • Specifically designed for high
    performance timber windows
  • Press to open and close principle
  • High airtightness in closed position
  • Easily removed without damage to product
  • Thermal insulation all plastic with gas injection moulded T-bar
  • Gasket seal between T-bar and channel
  • Unique auto drop down opening
  • High quality, robust operating mechanism
  • Unobtrusive low profile design
  • Latching mechanism in closed position
  • High airflow or 4300mm2 EA
  • GF Polyester
  • Effective in reducing pollutants in the home and improving Indoor Air Quality (IAQ), therefore reducing the risk of Toxic Home Syndrome.

Trykvent Ventilator

Trykvent Hi-Flow Canopy

Product Product Code (L)
Length (mm)
Width (mm)
Projection Closed-Open (mm)
Free Area
Slot Detail
Trykvent 389 TA7701 389 27 6.2 - 19 4300 4800
HF 441 Canopy TA6054 441 24 36.5 6763
Trykvent 283 TA7702 283 27 6.2 - 19  3000 3616  
HF 303 Canopy TA6057 303 24 36.5 4458

* Slot detail should also include a 386 x 23 x 22 recess for the ventilator.
** Slot detail should also include a 280 x 23 x 22 recess for the ventilator.



Manufactured From

Glass filled PBT & POM


Tested in accordance with BS EN 13141-2:2004 (air flow, air leakage and weather tightness)


(Full test details available on request)
Equivalent Area - See above
Free Area - See above
Air Leakage - 0.40m³/hr @ 50 Pascal
Water Resistance - No test data available


Suffix product code with:
-392 (white), -315 (brown), -464 (grey) matches RAL9006

More information / 01206 713801