Rytons A1® Fire-rated Ducting Kit 100mm Dia. with 175mm x 175mm Return Grille Return Grille (A1RD4LV): 175mm W x 175mm H x 8mm D, corner screw holes, 97mm Dia. x 25mm D spigot. Free area: 16,640mm² (over 90% of the duct). Custom RAL colour grille in matt, semi-gloss or gloss finish achieving Class A2-s1, d0. Custom connector for 110mm x 54mm or 100mm dia. ducting. 110mm x 54mm - custom overall length (including plastic duct connector RD4FR+RD4CONN - refer to drawing). Note: Rytons recommend adding 200mm to the external wall measurement to ensure the duct and connector finish within the inner leaf. 100mm dia. - custom overall length (including plastic duct connector RD4CONN - refer to drawing). Note: Rytons recommend adding 100mm to the external wall measurement to ensure the duct and connector finish within the inner leaf. Properties: Class A1 fire-rated 0.9mm/0.5mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Spot welded. Specialist sealant used on all gaps. Registered Design 6479783 and 6479784. Patent Approved. Product Code: A1DK100LV. Download Drawing.
Quantity required per RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0:
Connector required (110mm x 54mm or 100mm dia.):
Overall length required (including plastic duct connector - refer to drawing). Note: Rytons recommend additional length to the external wall measurement to ensure the duct and connector finish within the inner leaf, see above for details:
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