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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
The system is mortar-free and can be fixed in all weather conditions
Bike hook with rubber end caps for protection
Opening can be attached to a soil stack or extractor fan with a 100mm - 120mm PVC hose
Pack of 600
The Ridge End Caps provide durable protection at each end of the ridge
White Hooded Cowl Extractor Air Vent & Back Draught Shutter 4 Inch Screws and Fixings The system is mortar-free andProduct Description White Hooded Cowl Vent & Back Draught Shutter For 4 Inch (100mm) Extractor Fan Ducting Hooded Cowl Vent Hooded Wall vent with internal back draught shutter. 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
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