10x10 White Premium Aluminum Linear Slot Diffuser – Modern Design (Duct Opening) 4 Slot If the opening is approximately

If the opening is approximately 8" × 4"

This grille is designed for return air only and has no adjustable damper for supply air control

Overall face size: 11-15/16" × 11-15/16" (overlaps the opening on all four sides)

Does it include an adjustable airflow damper

⚠️ CHECK SIZE BEFORE PURCHASE: Fits a 10" × 4" duct opening (measure the hole

10x10 White Premium Aluminum Linear Slot Diffuser – Modern Design (Duct Opening) 4 Slot If the opening is approximatelyCHECK SIZE BEFORE PURCHASE: This 10x10 linear slot diffuser fits a 10" 10" duct opening (the hole in your wall, ceiling, or floor not your old cover face). See the full 10x10 sizing guide Fits a 10" 10" duct opening measure the hole, not your old cover face. Drop in surface mount replacement no drywall, flooring, or duct modification required. Modern minimalist slot design for contemporary interiors and cleaner visual lines. Solid alloy aluminum rust