Pay in 4 interest-free payments of $6.02 Learn more
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
9 x 3 Inch (228mm x 77mm)
Meets NHBC requirements for the control of condensation in buildings
Fits Marley
Built in small & easy-to-use quick release tab
Brown Gravity Flap Air Vent & Back Draught Shutter 4 Inch coming-soon 9 x 3 Inch (228mmProduct Description Brown 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. Dual fitting for round 100mm (4 Inch) ducting or square ducting. Overall size: 140mm x 140mm. British made. ABS thermoplastic. Complies with Part F building regulations. Suitable for commercial and
