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] 8" Diameter 75" width X 33

75" width X 33

Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

designed to prevent corrosion

Inspect the Pump: Before installation

+ Product Details Size – 36"w X 34"h is the size for the duct opening measurement only

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] 8" Diameter 75" width X 33+ 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.