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- Aluminum eggcrate return grille for surface mount; 1/2” x 1/2” x 1/2” aluminum grid core
- Available in square & rectangular neck sizes from 6"x6" - 48"x24"
- 90% free area for minimal pressure drop
- Fits OBDB Damper
- MRI compatible – no ferrous parts
- Surface mount with screw holes except sizes indicated by NSH (No Screw Holes)
- White powder coated epoxy finish