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TRUaire SD1A Saddle Mounted Spiral Diffusers Aluminum Finish
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TRUaire SD1A Saddle Mounted Spiral Diffusers Aluminum Finish

Spiral SD1A 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
  • No damper or 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 10X04-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x04" LIST size, 10" round duct saddle. 5-6 Days $145.80
SD1A 10X04-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x04" LIST size, 12" round duct saddle. 5-6 Days $145.80
SD1A 10X06-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 10" round duct saddle. 5-6 Days $145.80
SD1A 10X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 12" round duct saddle. 5-6 Days $145.80
SD1A 10X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 14" round duct saddle. 5-6 Days $145.80
SD1A 10X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 16" round duct saddle. 5-6 Days $145.80
SD1A 10X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 18" round duct saddle. 5-6 Days $145.80
SD1A 10X06-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 10x06" LIST size, 20" round duct saddle. 5-6 Days $145.80
SD1A 12X04-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 10" round duct saddle. 5-6 Days $147.20
SD1A 12X04-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 12" round duct saddle. 5-6 Days $147.20
SD1A 12X04-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 14" round duct saddle. 5-6 Days $147.20
SD1A 12X04-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 16" round duct saddle. 5-6 Days $147.20
SD1A 12X04-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 18" round duct saddle. 5-6 Days $147.20
SD1A 12X04-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x04" LIST size, 20" round duct saddle. 5-6 Days $147.20
SD1A 12X06-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x06" LIST size, 10" round duct saddle. 5-6 Days $152.60
SD1A 12X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x06" LIST size, 12" round duct saddle. 5-6 Days $152.60
SD1A 12X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x06" LIST size, 14" round duct saddle. 5-6 Days $152.60
SD1A 12X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x06" LIST size, 16" round duct saddle. 5-6 Days $152.60
SD1A 12X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 12x06" LIST size, 18" round duct saddle. 5-6 Days $152.60
SD1A 14X04-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x04" LIST size, 10" round duct saddle. 5-6 Days $148.60
SD1A 14X04-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x04" LIST size, 12" round duct saddle. 5-6 Days $148.60
SD1A 14X04-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x04" LIST size, 16" round duct saddle. 5-6 Days $148.60
SD1A 14X06-10 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 10" round duct saddle. 5-6 Days $156.00
SD1A 14X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 12" round duct saddle. 5-6 Days $156.00
SD1A 14X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 14" round duct saddle. 5-6 Days $156.00
SD1A 14X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 16" round duct saddle. 5-6 Days $156.00
SD1A 14X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 18" round duct saddle. 5-6 Days $156.00
SD1A 14X06-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x06" LIST size, 20" round duct saddle. 5-6 Days $156.00
SD1A 14X08-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x08" LIST size, 12" round duct saddle. 5-6 Days $163.60
SD1A 14X08-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x08" LIST size, 14" round duct saddle. 5-6 Days $163.60
SD1A 14X08-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x08" LIST size, 16" round duct saddle. 5-6 Days $163.60
SD1A 14X08-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 14x08" LIST size, 18" round duct saddle. 5-6 Days $163.60
SD1A 16X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x06" LIST size, 12" round duct saddle. 5-6 Days $162.20
SD1A 16X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x06" LIST size, 16" round duct saddle. 5-6 Days $162.20
SD1A 16X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x06" LIST size, 18" round duct saddle. 5-6 Days $162.20
SD1A 16X08-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x08" LIST size, 12" round duct saddle. 5-6 Days $169.90
SD1A 16X08-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x08" LIST size, 14" round duct saddle. 5-6 Days $169.90
SD1A 16X08-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 16x08" LIST size, 16" round duct saddle. 5-6 Days $169.90
SD1A 18X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x06" LIST size, 12" round duct saddle. 5-6 Days $168.60
SD1A 18X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x06" LIST size, 14" round duct saddle. 5-6 Days $168.60
SD1A 18X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x06" LIST size, 16" round duct saddle. 5-6 Days $168.60
SD1A 18X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x06" LIST size, 18" round duct saddle. 5-6 Days $168.60
SD1A 18X08-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x08" LIST size, 12" round duct saddle. 5-6 Days $179.00
SD1A 18X08-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x08" LIST size, 14" round duct saddle. 5-6 Days $179.00
SD1A 18X08-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x08" LIST size, 16" round duct saddle. 5-6 Days $179.00
SD1A 18X08-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x08" LIST size, 18" round duct saddle. 5-6 Days $179.00
SD1A 18X08-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 18x08" LIST size, 20" round duct saddle. 5-6 Days $179.00
SD1A 20X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x06" LIST size, 12" round duct saddle. 5-6 Days $174.00
SD1A 20X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x06" LIST size, 14" round duct saddle. 5-6 Days $174.00
SD1A 20X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x06" LIST size, 16" round duct saddle. 5-6 Days $174.00
SD1A 20X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x06" LIST size, 18" round duct saddle. 5-6 Days $174.00
SD1A 20X06-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x06" LIST size, 20" round duct saddle. 5-6 Days $174.00
SD1A 20X08-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x08" LIST size, 12" round duct saddle. 5-6 Days $185.00
SD1A 20X08-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x08" LIST size, 14" round duct saddle. 5-6 Days $185.00
SD1A 20X08-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x08" LIST size, 16" round duct saddle. 5-6 Days $185.00
SD1A 20X08-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x08" LIST size, 18" round duct saddle. 5-6 Days $185.00
SD1A 20X08-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 20x08" LIST size, 20" round duct saddle. 5-6 Days $185.00
SD1A 24X06-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 24x06" LIST size, 12" round duct saddle. 5-6 Days $186.20
SD1A 24X06-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 24x06" LIST size, 14" round duct saddle. 5-6 Days $186.20
SD1A 24X06-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 24x06" LIST size, 16" round duct saddle. 5-6 Days $186.20
SD1A 24X06-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 24x06" LIST size, 18" round duct saddle. 5-6 Days $186.20
SD1A 24X06-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 24x06" LIST size, 20" round duct saddle. 5-6 Days $186.20
SD1A 30X08-12 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 12" round duct saddle. 5-6 Days $216.70
SD1A 30X08-14 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 14" round duct saddle. 5-6 Days $216.70
SD1A 30X08-16 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 16" round duct saddle. 5-6 Days $216.70
SD1A 30X08-18 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 18" round duct saddle. 5-6 Days $216.70
SD1A 30X08-20 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 20" round duct saddle. 5-6 Days $216.70
SD1A 30X08-24 TRUaire saddle mounted spiral diffuser. Single deflection. Aluminum finish. 30x08" LIST size, 24" round duct saddle. 5-6 Days $216.70
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