Cost-Efficient Solution for Your Facility

Spiral Duct Series is a versatile line of specialty products offered by Tuttle & Bailey®. These grilles are ideal for round or spiral duct mounting and are equipped with either radius endcaps (R) or universal endcaps (U) that provide a clean appearance.
SDA64 Aluminum Spiral Duct Grille Double Deflection

SDA64 Aluminum Spiral Duct Grille Double Deflection

  • Radius (R) or universal (U) endcap design gives it a clean appearance
  • Features vertical face blades and horizontal rear blades
  • Consists of countersunk screw holes and mounting screws
SDAPG Aluminum Spiral Duct Grille Perforated Face

SDAPG Aluminum Spiral Duct Grille Perforated Face

  • Comes with countersunk screw holes and mounting screws
  • Aluminum construction provides rigidity
  • Features a standard White (WH) finish
SDA54 Aluminum Spiral Duct Grille Double Deflection

SDA54 Aluminum Spiral Duct Grille Double Deflection

  • Universal endcaps reduce stocking requirements
  • Features sturdy aluminum construction
  • Available in standard White (WH) finish
SDA60 Aluminum Spiral Duct Grille Single Deflection

SDA60 Aluminum Spiral Duct Grille Single Deflection

  • Optional damper or extractor available for balancing
  • Comes in a standard White (WH) finish in anodic acrylic paint
  • Aluminum construction with adjustable vertical face blades
SDA50 Aluminum Spiral Duct Grille Single Deflection

SDA50 Aluminum Spiral Duct Grille Single Deflection

  • Comes in aluminum construction
  • Accommodates multiple duct diameters
  • Endcaps allow low-cost installation