24" X 24" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 25" Width X 25" Height] White Installation – Installs directly on

Installation – Installs directly on round & oval spiral duct - no frames

commercial

Filter Size - 29

excluding the old vent cover

24" X 24" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 25" Width X 25" Height] White Installation – Installs directly on+ Product Details Size 24" X 24" is the size for the drywall opening measurement only, actual front end outer dimensions are 25" Width X 25" 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.