Robust and reliable coverage to protect air vents from the weather. This large cowl vent cover has been designed to fit neatly over three airbricks of up to 230 x 230mm. The base grille prevents draughts coming back in through the vent and shields it from rain. • Large 300 x 300mm cowl vent cover • Grille in base to protect against weather • Fits over three airbricks up to 230 x 230mm • Free air space of 193cm² • Robust brown plastic design for durability
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