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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
T2 rated conforms to BS EN 61184
Height when erected: 44cm
Manrose Intervent NVF100S
Provides a maximum equivalent area of 15200mm² of free air space
The telescopic feature enables it to be adjusted between 3 and 7 brick courses
Terracotta Gravity Flap Air Vent & Back Draught Shutter 4 Inch Extractor Fans & Vents T2 rated conforms to BSProduct Description Terracotta Air Vent & Back Draught Shutter For 4 Inch (100mm) Extractor Fan Ducting Gravity Flap Vent Wall vent with gravity flaps and 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
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