12" X 12" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] w24h24 + Product Details Size -

+ Product Details Size - 14"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 24"h is the size for the duct opening measurement only

With four elegant colors and various sizes available

strong aluminum construction with smooth finished edges for easy and safe use

Actual Filter Size – 11 3/4"w x 25 3/4" x 1"

12" X 12" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] w24h24 + Product Details Size -+ Product Details Size 12" X 12" is the size for the drywall opening measurement only, actual front end outer dimensions are 13" Width X 13" Height High Quality High grade steel construction. Design 1mm galvanized steel material with sleek, shiny, durable white powder coat finish for an attractive look & high durability corrosion protection 15mm medium density fibreboard with felt cover and rubber sealing between the door and frame for tight security.