3/4" Blade Spacing
Single or double deflection supply grilles and registers shall be Anemostat Model 10 (single deflection) or Model 20 (double deflection), manufactured from (steel, aluminum, stainless steel) with 3/4" blade spacing and as scheduled.

1/2" Blade Spacing
Single or double deflection supply grilles and registers shall be Anemostat Model 15 (single deflection) or Model 25 (double deflection), manufactured from (steel, aluminum, stainless steel) with 1/2" blade spacing and as scheduled.

The grilles/registers shall consist of an outer border or frame, with face directional blades parallel to the (long, short) dimension as detailed.  Blades shall be individually adjustable and designed to minimize noise and pressure loss, and shall consist of either an extruded aluminum or roll formed, closed profile. Blades shall rotate smoothly without bending and include a friction design consisting of tension wire to hold blade position, and prevent rattling.  Frame mounting holes shall be countersunk for oval head screws, provided by the grille manufacturer.

Where scheduled and as shown, provide optional (steel, aluminum, stainless steel) face operated opposed blade volume control dampers.  Include optional grille frame gasketing or Model RC removable core auxiliary frames if scheduled.

Finish shall be baked-on Anemostat Arctic White or custom color as specified by the Architect.