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Ships within 48 hours · Estimated delivery Nov 6 - Nov 11
Size: 40mm x 40mm
Polypropylene so does not bend out of shape like traditional metal grates
Extruded in UPVC
Overall vent size: 9½" x 6½" (255mm x 165mm)
Offers reduction of draughts and light compared to basic through wall ventilation
Terracotta Louvre Extractor Air Vent & Back Draught Shutter 4 Inch Weep Vents Size: 40mm x 40mmProduct Description Terracotta Air Vent & Back Draught Shutter For 4 Inch (100mm) Extractor Fan Ducting Louvre Vent Louvre wall vent with weather sill. Helps prevent backdrafts. Manufactured with UV stable materials to reduce colour fade. Suitable for round 100mm (4 Inch) ducting. Overall size: 140mm x 140mm. British made. ABS thermoplastic. Complies with Part F building regulations. Suitable for commercial and domestic use. Other vents and colours