TRUaire

TRUaire SD1A-O Saddle Mounted Spiral Diffusers With OBD Aluminum Finish

Spiral SD1A-O Duct Diffusers were born of the rustic exposed ceiling era in architectural design. Wherever air needs to leave ductwork and enter the conditioned space a hole is cut in the duct. A register is then attached for directional air control and aesthetics. The saddle type diffuser is available in either single deflection or double deflection blade configurations.

  • Unfinished aluminum appearance
  • Single deflection configuration
  • With OBD damper
  • No scoop
  • Saddle curved to fit duct radius
  • Adjustable bars on grille face

Note that LIST SIZE is the size of the duct opening.  See submittal sheet for actual grille dimensions.

model description usually ships price QTY
SD1A-O 10X04-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x04" LIST size, 10" round duct saddle. 2-3 Days $83.80
SD1A-O 10X04-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x04" LIST size, 12" round duct saddle. 2-3 Days $83.80
SD1A-O 10X06-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 10" round duct saddle. 2-3 Days $92.20
SD1A-O 10X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 12" round duct saddle. 2-3 Days $92.20
SD1A-O 10X06-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 14" round duct saddle. 2-3 Days $92.20
SD1A-O 10X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 16" round duct saddle. 2-3 Days $92.20
SD1A-O 10X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 18" round duct saddle. 2-3 Days $92.20
SD1A-O 10X06-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 10x06" LIST size, 20" round duct saddle. 2-3 Days $92.20
SD1A-O 12X04-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 10" round duct saddle. 2-3 Days $90.50
SD1A-O 12X04-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 12" round duct saddle. 2-3 Days $90.50
SD1A-O 12X04-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 14" round duct saddle. 2-3 Days $90.50
SD1A-O 12X04-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 16" round duct saddle. 2-3 Days $90.50
SD1A-O 12X04-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 18" round duct saddle. 2-3 Days $90.50
SD1A-O 12X04-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x04" LIST size, 20" round duct saddle. 2-3 Days $90.50
SD1A-O 12X06-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x06" LIST size, 10" round duct saddle. 2-3 Days $94.50
SD1A-O 12X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x06" LIST size, 12" round duct saddle. 2-3 Days $94.50
SD1A-O 12X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x06" LIST size, 16" round duct saddle. 2-3 Days $94.50
SD1A-O 12X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x06" LIST size, 18" round duct saddle. 2-3 Days $94.50
SD1A-O 12X06-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 12x06" LIST size, 20" round duct saddle. 2-3 Days $94.50
SD1A-O 14X04-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x04" LIST size, 10" round duct saddle. 2-3 Days $93.30
SD1A-O 14X04-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x04" LIST size, 12" round duct saddle. 2-3 Days $93.30
SD1A-O 14X04-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x04" LIST size, 16" round duct saddle. 2-3 Days $93.30
SD1A-O 14X06-10 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 10" round duct saddle. 2-3 Days $97.90
SD1A-O 14X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 12" round duct saddle. 2-3 Days $97.90
SD1A-O 14X06-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 14" round duct saddle. 2-3 Days $97.90
SD1A-O 14X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 16" round duct saddle. 2-3 Days $97.90
SD1A-O 14X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 18" round duct saddle. 2-3 Days $97.90
SD1A-O 14X06-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x06" LIST size, 20" round duct saddle. 2-3 Days $97.90
SD1A-O 14X08-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x08" LIST size, 12" round duct saddle. 2-3 Days $107.30
SD1A-O 14X08-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x08" LIST size, 14" round duct saddle. 2-3 Days $107.30
SD1A-O 14X08-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x08" LIST size, 16" round duct saddle. 2-3 Days $107.30
SD1A-O 14X08-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 14x08" LIST size, 18" round duct saddle. 2-3 Days $107.30
SD1A-O 16X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x06" LIST size, 12" round duct saddle. 2-3 Days $101.70
SD1A-O 16X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x06" LIST size, 16" round duct saddle. 2-3 Days $101.70
SD1A-O 16X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x06" LIST size, 18" round duct saddle. 2-3 Days $101.70
SD1A-O 16X08-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x08" LIST size, 12" round duct saddle. 2-3 Days $113.50
SD1A-O 16X08-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x08" LIST size, 14" round duct saddle. 2-3 Days $113.50
SD1A-O 16X08-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 16x08" LIST size, 16" round duct saddle. 2-3 Days $113.50
SD1A-O 18X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x06" LIST size, 12" round duct saddle. 2-3 Days $110.10
SD1A-O 18X06-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x06" LIST size, 14" round duct saddle. 2-3 Days $110.10
SD1A-O 18X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x06" LIST size, 16" round duct saddle. 2-3 Days $110.10
SD1A-O 18X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x06" LIST size, 18" round duct saddle. 2-3 Days $110.10
SD1A-O 18X08-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x08" LIST size, 12" round duct saddle. 2-3 Days $116.90
SD1A-O 18X08-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x08" LIST size, 14" round duct saddle. 2-3 Days $116.90
SD1A-O 18X08-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x08" LIST size, 16" round duct saddle. 2-3 Days $116.90
SD1A-O 18X08-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x08" LIST size, 18" round duct saddle. 2-3 Days $116.90
SD1A-O 18X08-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 18x08" LIST size, 20" round duct saddle. 2-3 Days $116.90
SD1A-O 20X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x06" LIST size, 12" round duct saddle. 2-3 Days $115.20
SD1A-O 20X06-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x06" LIST size, 14" round duct saddle. 2-3 Days $115.20
SD1A-O 20X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x06" LIST size, 16" round duct saddle. 2-3 Days $115.20
SD1A-O 20X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x06" LIST size, 18" round duct saddle. 2-3 Days $115.20
SD1A-O 20X06-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x06" LIST size, 20" round duct saddle. 2-3 Days $115.20
SD1A-O 20X08-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x08" LIST size, 12" round duct saddle. 2-3 Days $121.40
SD1A-O 20X08-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x08" LIST size, 14" round duct saddle. 2-3 Days $121.40
SD1A-O 20X08-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x08" LIST size, 16" round duct saddle. 2-3 Days $121.40
SD1A-O 20X08-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x08" LIST size, 18" round duct saddle. 2-3 Days $121.40
SD1A-O 20X08-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 20x08" LIST size, 20" round duct saddle. 2-3 Days $121.40
SD1A-O 24X06-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 24x06" LIST size, 12" round duct saddle. 2-3 Days $123.60
SD1A-O 24X06-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 24x06" LIST size, 14" round duct saddle. 2-3 Days $123.60
SD1A-O 24X06-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 24x06" LIST size, 16" round duct saddle. 2-3 Days $123.60
SD1A-O 24X06-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 24x06" LIST size, 18" round duct saddle. 2-3 Days $123.60
SD1A-O 24X06-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 24x06" LIST size, 20" round duct saddle. 2-3 Days $123.60
SD1A-O 30X08-12 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 12" round duct saddle. 2-3 Days $151.00
SD1A-O 30X08-14 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 14" round duct saddle. 2-3 Days $151.00
SD1A-O 30X08-16 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 16" round duct saddle. 2-3 Days $151.00
SD1A-O 30X08-18 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 18" round duct saddle. 2-3 Days $151.00
SD1A-O 30X08-20 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 20" round duct saddle. 2-3 Days $151.00
SD1A-O 30X08-24 TRUaire saddle mounted spiral diffuser. Single deflection, with OBD. Aluminum finish. 30x08" LIST size, 24" round duct saddle. 2-3 Days $151.00
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