The TLC Version of certain sizes of models DDL & SDL20 has been specifically designed for direct mounting on Holyoake Spiroloc rigid round duct. Only the sizes listed are available, and only the units with front blades in the ‘W’ direction [DDL and SDL] can be produced.
Curved Face Single Deflection Supply Air Registers, suitable for Surface Mounting Directly to Spiroloc Ducting shall be Holyoake Model TLC-SDL-20 and shall be of extruded aluminium construction, with 20mm True Airfoil Shaped individually adjustable Horizontal Front Blades of no greater than 20mm centres. Curved Face Single Deflection Supply Air Registers shall be finished in powder coat and fitted with accessories and dampers where indicated as manufactured by Holyoake.