24" X 24" Aluminum Insulated Fire Resistant Access Panel Door For Wall / Ceiling Application (Lock and Key) With Frame - [Outer Dimensions: 25" Width X 25" Height] w26h26 + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 6"w X 8"h X 2"d (for duct opening measurement only)

this grille enhances air circulation

+ Product Spec Sheet Aluminum Return Grille Spec Sheet

+Product Description Introducing our 1/4" Non-Insulated Copper Coil Line

Actual Filter Size – 21 3/4"w x 13 3/4" x 1"

24" X 24" Aluminum Insulated Fire Resistant Access Panel Door For Wall Ceiling Application (Lock and Key) With Frame [Outer Dimensions: 25" Width X 25" Height] w26h26 + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 6"w X 8"h X 2"d (for duct opening measurement only) this grille enhances air circulation