Attention! Before purchasing, measure the opening where the grille will be installed. This size should match the dimensions given in the product description Aluminum Return Grille for HVAC Ceiling or Sidewall - Rust-Free with Easy Air Flow Key Features: - Material: Made from extruded aluminium construction (ALUMINUM AA6063). This rust-free high-grade aluminum ensures the grille is sturdy, light, and easy to install. - Design: Designed specifically for extraction of air. Features fixed parallel blades set at a 38° angle to guarantee effective air flow. Suitable for both ceiling and sidewall installation. - Finish: Coated with high-resistance electrostatic white paint. This powder-coat finish gives the grille a smooth, shiny, and scratch-resistant appearance. - Package Details: Each grille is individually packed in a protective plastic bag with corner protection to prevent damage during shipping. - Installation: Comes with galvanized steel cross head screws (5/32" diameter x 1 1/2" length) with a white colored head, specially designed for wood and drywall. These screws ensure a seamless fit with the grille's white finish. - Quality Assurance: These Laminaire products are manufactured adhering to ASHRAE standards. With over 20 years of trust in the USA market, we guarantee the quality and longevity of our grilles. Installation Guide: Before you begin, gather the necessary tools: a screwdriver or drill, meter, pencil, and safety accessories. If you haven't yet created the hollow for the grille, ensure you have tools to do so depending on your ceiling or wall material. 1. Preparation: - If a hollow exists, leave the grille in its packaging. First, measure the hollow's width and height and compare it with the grille size on the bag label. This ensures compatibility. - Without a hollow, mark the hollow size on the ceiling or wall using the grille size indicated on the bag label. Always measure width followed by height in inches. 2. Positioning: - Remove the grille from its packaging. Extract the cardboard corners and retrieve the included screws. - Place the grille into the hollow. Secure it loosely with the provided screws, ensuring the horizontal blade position for wall installations. 3. Finalizing: - Before tightening all screws, align the grille horizontally and vertically with the opening for perfect parallelism. - Once aligned, tighten the screws securely to ensure the grille remains in place. Note: With the combination of our product's quality and your careful installation, you're assured a quiet air conditioning experience with a premium look and feel. We've consolidated the provided details for better clarity and a structured presentation, ideal for potential customers. HEADS UP! Double-check your opening dimensions to ensure they match the product description before purchasing the grille. [Sizing Guide]: Ensure accurate fit by measuring your wall or ceiling opening before ordering. For this grille, the opening should be at least 12"W x 8"H. Avoid using old grille measurements. Always start with the Width (W) followed by the Height (H). This grille comes with a front end frame designed to overlap at wall or ceiling junctions, with an overall external dimension of 13.6"W x 9.6"H.