Models AL / TL
Aluminum linear bar grilles / registers shall be model AL (1/4" bars) or TL (1/8" bars) by Anemostat.  The grilles shall consist of an outer border or frame, and core configuration as scheduled.  Core bars shall be either 1/8" or 1/4" wide, fixed on 1/4" or 1/2" centers, with a 0, 15, or 45 degree deflection angle. Double deflection grilles shall be provided as scheduled, consisting of individually adjustable blades behind the core, to allow adjustment for spread angle of air discharge pattern.  Grille lengths shall be provided up to 8’ as a single assembly without joints, and up to 18" in height as a single core.   Longer continuous runs shall be constructed from multiple units, and aligned with alignment hardware from the grille manufacturer.  

Cores shall be constructed from extruded aluminum, and shall be removable from the outer frame for cleaning, access, and servicing.  Designs utilizing a non-removable swaged core/frame assembly, or using auxiliary frames are not acceptable.   Floor units shall use borders FH or FG designed for foot traffic and shall include floor reinforcement no more than 5" centers.  Cores shall be 1/4" wide bars on 1/2" centers.

Where scheduled and as shown, provide mitered corners or joints.  Include all accessories required including opposed blade dampers, blank-offs, or equalizing deflectors.

Finish shall be natural anodize , or baked-on arctic white.  

Models AL-S / TL-S
Aluminum linear bar grilles shall be model AL-S/TL-S Short Stack by Anemostat.  Grille depth shall be no more than 5/8" deep, and  shall be designed to allow installation into a plaster surface that transverses internal studs without requiring notching of studs or requiring special framing. The grilles shall consist of a flanged outer frame with core constructed from (1/8" / 1/4") thick louvers on (1/4" / 1/2") centerlines. Grille lengths shall be provided up to 8' as a single assembly without joints, and up to 18" in height as a single core.   Longer continuous runs shall be constructed from multiple units, and positioned with alignment hardware provided by the grille manufacturer. 

Cores shall be constructed from extruded aluminum, and shall be arc welded to the outer frame.  Grilles shall be installed using (face screws)(concealed mounting hardware). 

Finish shall have a baked-on (white finish) (silver finish) (color as selected by the architect).