30" x 32" or 32" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 18"w X 22"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings

+ Product Details Size – 26"w X 18"h is the size for the duct opening measurement only

+ Product Description Protect and secure your thermostat with this high-quality Clear Plastic Thermostat Guard

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30" x 32" or 32" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 18"w X 22"h is the size for the duct opening measurement only Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings