Announcement
Free shipping on orders over $150
Questions? 1-855-711-4822
Shop
Grille Finder
Account | Cart
Free shipping on orders over $150
Account
menu icon
telephone icon Call us
search icon Search
cart icon Cart
Grille Finder white down arrow icon
X

Shop by Brand

Made to Order
Grillesmith Dayus Majestic Vent Covers SteelCrest Vexell
Design your own with Grillesmith Designer
Stocked
Access Panels Inc. Airtec by TRUaire American Louver Fantech HaVACo Technologies Lifebreath Indoor Air Systems Lima Primex Seiho SMI Ventilation Products Soler & Palau TRUaire Worth Home Products

Shop by Product

styles
Bar Linear Grilles Decorative Grilles Industrial Grilles Plastic Grilles Round Grilles
specialty
Access Doors Baseboard Registers Dampers Door Grilles Filter Grilles Louvers Perforated Grilles Wood Grilles
architectural & commercial
Bar Linear Grilles Cube Core Grilles Curved Blade Grilles Industrial Grilles Louvers Spiral Duct Diffusers Slot Diffusers & Returns Straight Blade Grilles T-Bar Grilles
Design your own with Grillesmith Designer

Grille Finder

Opening
We'll return results within 0.5 inches
APPLICATION
STYLE & FEATURES
MATERIAL & COLOR
Find my grilles
architectural & commercial / Spiral Duct Diffusers / Spiral Diffusers with Saddle
product image product image product image
thumbnail
thumbnail
thumbnail
Stock Item
TRUaire / Spiral Diffusers with Saddle

SD2A-S Saddle Mounted Spiral Diffusers With Scoop Aluminum Finish

mill
unpainted
spiral duct
aluminum
steel
rectangle

Spiral SD2A-S 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 
  • Double deflection configuration
  • Includes adjustable air scoop
  • No damper 
  • Saddle curved to fit duct radius
  • Adjustable bars on grille face

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

TRUaire grilles ship from their CA and TX warehouses. Large quantities are typically available.

UPS Shipping Zones ups zone map icon

ups shipping zone map
Order
Specs
Additional Videos

Model Number

Description

Ships

Unit Price

Quantity

Subtotals

SD2A-S 10X04-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x04" LIST size, 10" round duct saddle. 5-6 Days $169.90
SD2A-S 10X04-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x04" LIST size, 12" round duct saddle. 5-6 Days $169.90
SD2A-S 10X06-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 10" round duct saddle. 5-6 Days $182.80
SD2A-S 10X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 12" round duct saddle. 5-6 Days $182.80
SD2A-S 10X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 14" round duct saddle. 5-6 Days $182.80
SD2A-S 10X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 16" round duct saddle. 5-6 Days $182.80
SD2A-S 10X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 18" round duct saddle. 5-6 Days $182.80
SD2A-S 10X06-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 10x06" LIST size, 20" round duct saddle. 5-6 Days $182.80
SD2A-S 12X04-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 10" round duct saddle. 5-6 Days $177.20
SD2A-S 12X04-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 12" round duct saddle. 5-6 Days $177.20
SD2A-S 12X04-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 14" round duct saddle. 5-6 Days $177.20
SD2A-S 12X04-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 16" round duct saddle. 5-6 Days $177.20
SD2A-S 12X04-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 18" round duct saddle. 5-6 Days $177.20
SD2A-S 12X04-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x04" LIST size, 20" round duct saddle. 5-6 Days $177.20
SD2A-S 12X06-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x06" LIST size, 10" round duct saddle. 5-6 Days $187.50
SD2A-S 12X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x06" LIST size, 12" round duct saddle. 5-6 Days $187.50
SD2A-S 12X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x06" LIST size, 14" round duct saddle. 5-6 Days $187.50
SD2A-S 12X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x06" LIST size, 16" round duct saddle. 5-6 Days $187.50
SD2A-S 12X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 12x06" LIST size, 18" round duct saddle. 5-6 Days $187.50
SD2A-S 14X04-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x04" LIST size, 10" round duct saddle. 5-6 Days $181.60
SD2A-S 14X04-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x04" LIST size, 12" round duct saddle. 5-6 Days $181.60
SD2A-S 14X04-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x04" LIST size, 16" round duct saddle. 5-6 Days $181.60
SD2A-S 14X06-10 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 10" round duct saddle. 5-6 Days $193.20
SD2A-S 14X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 12" round duct saddle. 5-6 Days $193.20
SD2A-S 14X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 14" round duct saddle. 5-6 Days $193.20
SD2A-S 14X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 16" round duct saddle. 5-6 Days $193.20
SD2A-S 14X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 18" round duct saddle. 5-6 Days $193.20
SD2A-S 14X06-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x06" LIST size, 20" round duct saddle. 5-6 Days $193.20
SD2A-S 14X08-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x08" LIST size, 12" round duct saddle. 5-6 Days $204.50
SD2A-S 14X08-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x08" LIST size, 14" round duct saddle. 5-6 Days $204.50
SD2A-S 14X08-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x08" LIST size, 16" round duct saddle. 5-6 Days $204.50
SD2A-S 14X08-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 14x08" LIST size, 18" round duct saddle. 5-6 Days $204.50
SD2A-S 16X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x06" LIST size, 12" round duct saddle. 5-6 Days $211.10
SD2A-S 16X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x06" LIST size, 16" round duct saddle. 5-6 Days $211.10
SD2A-S 16X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x06" LIST size, 18" round duct saddle. 5-6 Days $211.10
SD2A-S 16X08-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x08" LIST size, 12" round duct saddle. 5-6 Days $231.00
SD2A-S 16X08-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x08" LIST size, 14" round duct saddle. 5-6 Days $231.00
SD2A-S 16X08-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 16x08" LIST size, 16" round duct saddle. 5-6 Days $231.00
SD2A-S 18X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x06" LIST size, 12" round duct saddle. 5-6 Days $220.60
SD2A-S 18X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x06" LIST size, 14" round duct saddle. 5-6 Days $220.60
SD2A-S 18X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x06" LIST size, 16" round duct saddle. 5-6 Days $220.60
SD2A-S 18X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x06" LIST size, 18" round duct saddle. 5-6 Days $220.60
SD2A-S 18X08-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x08" LIST size, 12" round duct saddle. 5-6 Days $237.50
SD2A-S 18X08-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x08" LIST size, 14" round duct saddle. 5-6 Days $237.50
SD2A-S 18X08-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x08" LIST size, 16" round duct saddle. 5-6 Days $237.50
SD2A-S 18X08-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x08" LIST size, 18" round duct saddle. 5-6 Days $237.50
SD2A-S 18X08-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 18x08" LIST size, 20" round duct saddle. 5-6 Days $237.50
SD2A-S 20X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x06" LIST size, 12" round duct saddle. 5-6 Days $233.60
SD2A-S 20X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x06" LIST size, 14" round duct saddle. 5-6 Days $233.60
SD2A-S 20X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x06" LIST size, 16" round duct saddle. 5-6 Days $233.60
SD2A-S 20X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x06" LIST size, 18" round duct saddle. 5-6 Days $233.60
SD2A-S 20X06-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x06" LIST size, 20" round duct saddle. 5-6 Days $233.60
SD2A-S 20X08-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x08" LIST size, 12" round duct saddle. 5-6 Days $241.00
SD2A-S 20X08-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x08" LIST size, 14" round duct saddle. 5-6 Days $241.00
SD2A-S 20X08-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x08" LIST size, 16" round duct saddle. 5-6 Days $241.00
SD2A-S 20X08-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x08" LIST size, 18" round duct saddle. 5-6 Days $241.00
SD2A-S 20X08-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 20x08" LIST size, 20" round duct saddle. 5-6 Days $241.00
SD2A-S 24X06-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 24x06" LIST size, 12" round duct saddle. 5-6 Days $248.50
SD2A-S 24X06-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 24x06" LIST size, 14" round duct saddle. 5-6 Days $248.50
SD2A-S 24X06-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 24x06" LIST size, 16" round duct saddle. 5-6 Days $248.50
SD2A-S 24X06-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 24x06" LIST size, 18" round duct saddle. 5-6 Days $248.50
SD2A-S 24X06-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 24x06" LIST size, 20" round duct saddle. 5-6 Days $248.50
SD2A-S 30X08-12 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 12" round duct saddle. 5-6 Days $286.60
SD2A-S 30X08-14 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 14" round duct saddle. 5-6 Days $286.60
SD2A-S 30X08-16 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 16" round duct saddle. 5-6 Days $286.60
SD2A-S 30X08-18 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 18" round duct saddle. 5-6 Days $286.60
SD2A-S 30X08-20 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 20" round duct saddle. 5-6 Days $286.60
SD2A-S 30X08-24 TRUaire saddle mounted spiral diffuser. Double deflection, with SCOOP. Aluminum finish. 30x08" LIST size, 24" round duct saddle. 5-6 Days $286.60
Add to cart

TRUaire SD2 Submittal

Dimensions and sizing information

TRUaire SD2 Performance Data

Airflow, pressure drop and velocity data

TRUaire SD Catalog

Catalog Sheet

TRUaire Full Catalog

Full PDF Catalog of TRUaire Products

smiling customer service operator typing on keyboard

Questions?
Our experts look forward to meeting you!

telephone icon

Call us: 1-855-711-4822
email icon

Email us at team@grillesmith.com

We're here Mon-Fri 8 am to 4:30 pm Pacific.