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  Model 30 / 35 Fixed Blade Returns  
       
 
Model 30 / 35

Application

  • Recommended for general return or exhaust of room air
  • 0° or 45° fixed blade deflection maximizes free area for low pressure loss and sound levels
  • Potential line of sight into duct thru grille is acceptable
  • Typically installed in a sidewall, duct, or ceiling
Product Features
  • Fixed blade return / exhaust grilles and registers exceeding the industry standard using heavy, 20 gauge steel frames
  • Aerodynamic blade design resulting in lowest achievable sound and pressure levels
  • 3/4" or 1/2" blade spacing
  • Blades selected as horizontal or vertical for visual effect
  • Registers include a factory attached, steel opposed blade volume control damper
  • Mounting holes in frame neatly countersunk for supplied #8 x 1-1/2" oval head screws
  • Arctic White baked-on finish
  • Maximum size one piece construction is 48" x 48". Larger sizes shipped in multiple sections for field assembly.
Options
  • 304 or 316 stainless steel construction with satin polish finish
  • Factory applied gasket material to frame
  • Aluminum or stainless steel opposed blade volume control dampers
  • Custom or optional paint colors
  • Filler panels for lay-in grid applications
 
Balancing
Factors

Extension Panels

   
   
       
Submittals
Model Blade
Spacing
Blade
Deflection
Material
Steel Aluminum Stainless Steel
Surface Mounted
30 3/4"
45°
35 1/2"
45°
Lay-In T-Bar
30 3/4"
45°
35 1/2" N/A
45° N/A
Lay-In T-Bar with Extension Panel
30 3/4" N/A
45° N/A
35 1/2" N/A;
45° N/A
9/16" Narrow Slot with Extension Panel
30 3/4" N/A
45° N/A
35 1/2" N/A
45° N/A
15/16" Tegular (T) with Extension Panel
35 1/2" N/A N/A
45° N/A N/A
30 3/4" N/A N/A
45° N/A N/A
9/16" Tegular (T9) with Extension Panel
30 3/4"
45°

Accessories
OBD - Opposed Blade Volume Control Damper
SRA - Square to Round Adapter
LS - Light Shield
RSA - Return Sound Attenuator
Concealed Fastening