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Isolation switch for shower circuit
Satisfies all NHBC Standards 2008 EditionManufactured to BS EN ISO 9001 : 2008Complies with all relevant Building RegulationsMeets all relevant British Standards
Black Dry Verge Fast Fit System Kit
The external cowl minimises uncomfortable draughts
Fully draught sealed & independently air leakage tested by BRE
Brown Gravity Flap Air Vent & Back Draught Shutter 4 Inch Cable Ties Isolation switch for shower circuitProduct 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
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