Rytons A1® Fire-rated Retrofit 90° Ducting Kit 204mm x 60mm with Return Grille Double Air Brick Flanged Return Grille Double Air Brick Flanged (15mm flange with corner screw holes): 18,720mm² free area (over 90% of the duct). Custom RAL colour air brick in matt, semi-gloss or gloss finish achieving Class A2-s1, d0. 209mm x 65mm sleeve to encase in situ ducting 204mm x 60mm. 50mm flange (with eight screw holes) at the end of the duct for fixing. Custom drop from underside of duct to face of air brick (refer to drawing). Custom overall length (refer to drawing). Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Everbuild Fire Mate intumescent and acoustic sealant used on all gaps. Registered Design 6085477. Patent Approved. Product Code: A1RF90DK204X60RGDF. Download Drawing.
Quantity required per RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0:
Drop required from underside of duct to face of air brick (refer to drawing):
Overall length required (refer to drawing):
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