Fits 36" x 18" Duct Hole [37.6" x 19.6" Face] - Aluminum Return Grille, Rustproof, Fixed Blades, for Ceiling/Wall, No Adjustments Necessary

Fits 36" x 18" Duct Hole [37.6" x 19.6" Face] - Aluminum Return Grille, Rustproof, Fixed Blades, for Ceiling/Wall, No Adjustments Necessary

[Proper Sizing First]: Measure your ceiling or sidewall opening at exactly 36" x 18" before purchasing. The visible face measures 37.6" x 19.6", ensuring a perfect fit and a neat finish. [No Movable Parts]: Fixed blades at a 38° angle—no louver, no filter, and no adjustable fins—provide consistent airflow without adjustments or levers. [Not for Floor or Exterior]: Strictly designed for indoor ceiling or sidewall installations. Not suitable for floors or outdoor use. [High-Grade Aluminum]: Made with extruded aluminum AA6063 for strength, durability, and rust-free longevity—an ideal air conditioning vent cover. [Semi-Matte White Finish]: Coated in a high-resistance electrostatic white powder (Laminaire, similar to RAL 9003), ensuring a smooth, scratch-resistant surface that complements any décor. ATTENTION: Before purchasing this return grille, it’s critical to measure your ceiling or wall opening to ensure a proper fit. Your hollow must be exactly 36" x 18". Once installed, the grille’s visible front face measures 37.6" x 19.6", slightly larger than the duct hole for a neat, finished appearance. Confirming measurements before opening the product bag helps prevent installation errors.