Spiral Duct Grilles (SDG) are designed to be mounted on round or spiral ducts without the use of transitions. The SDG can be used for supply or return applications and is ideal for highly visible, exposed round or spiral duct mounting.
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Hanover, MA - 4
|Blade Spacing||3/4" Blade Spacing|
|Fastening||A - Countersunk Screw Holes|