24"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 25.25"W x 5.25"H] Material_Anodized Aluminum specifically designed for the 36mm

specifically designed for the 36mm Ratcheting Tubing Cutter

and extends HVAC system life

Tamper-Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings

please note that the total outer dimensions of the grille measure 16" in diameter

24"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 25.25"W x 5.25"H] Material_Anodized Aluminum specifically designed for the 36mm+ Product Details Size 24"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 25. 25" Width X 5. 25" Height. Design Designed for concealed, flush placement on your wall with a 3 8 inch space between louvers, this linear grille comes with an installation frame and clips for easy hook in assembly, ensuring a refined and seamless look. High Quality Aluminum The premium durable aluminum will never rust and it will never