10" X 10" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 11" Width X 11" Height] w12h12 + Product Details Size - 75 Width X 17 LO3634 w20h20

+ Product Details Size - 36"w X 20"h is the size for the duct opening measurement only

2 Standards - MERV 8 - And An Average Arrestance Of 90-94%

+ Product Details Size – 28"w X 10"h is the size for the duct opening measurement only

Produced in accordance with ISO 9001-2008 Quality Management System

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 32" OR 32" x 22" duct opening (measured at the opening)

10" X 10" Universal Aluminum Access Panel Door For Wall Ceiling Application (Push Lock) With Solid Frame [Outer Dimensions: 11" Width X 11" Height] w12h12 + Product Details Size 75 Width X 17 LO3634 w20h20 + Product Details Size 36"w X 20"h is the size for the duct opening measurement only 2 Standards MERV 8 And An Average Arrestance Of 90 94%