Model DD double deflection grille
incorporates two sets of individually
adjustable blades. The front blades may
be either horizontal or vertical. The grille is
suitable for sidewall, soffit or cill mounting
and may be used for supply or extract
applications. Typical installations include
offices, shops, hotels and most
commercial or industrial buildings.
Available as standard in either white or
silver stove enamel paint finish. Other
paint finishes also available as an option.
Standard fixing is with No.8 countersunk
headed screws (BY OTHERS) using
prepared countersunk screw holes in
An optional opposed blade damper can
be fitted to the rear of the grille and
adjusted through the grille core.