33RFL
Steel heavy duty filter grille, 1/2" blade spacing, 38 degree deflection, blades parallel to long dimension
Steel heavy duty return grilles in are great for use in gymnasiums and other areas where rugged construction is required. Available in 0º or angled deflection and standard or filter grille configurations.
FEATURES AND BENEFITS
  • Series 33 heavy duty filter grilles feature louvers spaced ½” apart
  • 33 series models are available in common filter sizes
  • 1” thick filters may be purchased from hardware stores for the most common sizes
  • Blade deflection angle is 38°
  • Quarter turn fasteners are standard to make filter access easy
  • Knurled knob fastener available as option
  • All dimensions are ± 1/16”
  • Filters by others
  • Dimensions are the same for border type 1 (surface mount) and border type 3 (lay-in T-bar)