TRF provides 2000mm² free area with a rout size of 165mm x 16mm.
AEF provides 4000mm² free area with a rout size of 257mm x 18mm.
Manufactured from PVCu.
Available in White and Brown.
Slotvent sleeves (SL.1) are compatible with the 4000 S Vent only - to bridge the window frame across the rout - available in white, in 4x size widths, 62mm, 70mm, 75mm and 200mm.
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