Ryton LV137FBG Louvre Ventilator With Flyscreen; White (WH); 225 x 150mm (9" x 6")

Ryton LV137FBG Louvre Ventilator With Flyscreen; White (WH); 225 x 150mm (9" x 6")Plastic louvre grille with detachable flyscreen.Suitable for internal and external use.Low profile fixed open louvres allow a high air flow.Flyscreen helps prevent the ingress of insects and spiders as well as reducing light and draughts.Embossed with DO NOT BLOCK.Compatible with Rytons 9?6 AirLiner? cavity liners.U.V. stabilised to slow down the effects of sunlight.BBA approved ? your independent assurance that the product meets building regulations and standards and will last.Louvre ventilators with flyscreens must not be used to supply combustion and cooling air to boilers, stoves and fires.Free Area:13,300mm? (133cm?) per unit.Size:271mm L x 171mm H.Composition:U.V. stabilised high impact polystyrene.