Product Product Description 

Jedco / US Aire Grille

Spiral GrilleSpiral Grilles are used for exposed Spiral Duct applications. Double deflection with individually adjustable vertical blades in front, horizontal blades in back. Integral Gasket seals Grille tightly to duct. Includes built in air scoop extractor that allows for accurate balancing and air control.

Aluminum construction, Mill Aluminum finish. Universal style allows this size to work on pipe from 8" to 24" in diameter.

One size suffices for many diameters; Stock sizes include 10" x 4" and 12" x 4" for 8"-24" diameters Spiral Pipe and 10” x 6” and 12” x 6” for 12" thru 24" diameter pipe.
Installation Instructions
Item Codes
Spec Sheet

Reliable Grille

Reliable GrilleMinimum Size: 10"x3"
Maxumum Size: 48"x12"
Single and double (vertical and horizontal) deflection
Adjustable blades
Extruded aluminum construction
Finish-SA (Satin Anodize) or W (White Painted)
Optional Air Scoop with Screw Adjustment
Installation Instructions
Item Codes
Spec Sheet

Hart & Cooley Spiral Diffuser

Hart-Cooley-Spiral-DiffuserHart & Cooley's model SVH1 Aluminum Double Deflection Spiral Grilles; 6" tall x various second dimension to fit all diameters up to 36" roundSpec Sheet
Submittal Data Sheet