Safe metal ducting contains rubber seals while standard metal ducting does not.
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Bathroom zones are just a way of telling which extractor fan you can install in a specific place.
Description:Our range of spiral duct grilles have been designed for fitting directly to circular ducts without the need for a special take-off. For supply grilles the angled hit and miss sliding damper acts as an air turn as well as a damper. Construction:RGS grilles are manufactured from hot galvanized steel plate and are assembled without welding. This means that the grille can be used without further surface treatment and the exterior of the grille matches the surface of the spiral duct onto which it is mounted. Model References:RGS-1 Double deflection grille without damper RGS-7 Double deflection grille with angled hit and miss damper - Supply Grilles Fixing:By self tapping screws (provided) through pre-drilled holes in grille frame. Ordering Procedure: A grille designed for supply air applications must have an angled hit and miss damper (code RGS-7) . Please give required length first followed by height and ensure that an appropriate height has been selected for the duct diameter (see table)
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i-sells.co.uk supplies our wide range of products daily throughout the UK -
export enquiries are welcome. I-sells for all your ducting, ventilation, air conditioning and damp control needs
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