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The D-type is a stylish range of slotvents which provide unobtrusive ventilation for PVC-u or timber windows.
The patented design of the fly screen's hydro shedding fins ensures that rain falls away from the window frame.
HD Vents require an 18mm high slot and can then be used where there is a constraint on the slot width.
Equivalent area:
13mm Slot Height:
16mm Slot Height:
18mm Slot Height:
Colours:
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