14" X 14" Plastic Access Panel Removeable/Reversable Door With Frame For Concealed Wall / Ceiling Application - [Outer Dimensions: 16" Width X 16" Height] Compatible with Duct 10" + Product Description Maximize HVAC

+ Product Description Maximize HVAC efficiency with our aluminum eggcrate return air filter grille

The integral multi-shutter damper with a convenient handle operator ensures that you can easily adjust the air volume

Plumbing Connections: Connect the inlet and outlet pipes securely

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 12" OR 12" x 36" duct opening (measured at the opening)

Actual Filter Size – 33 3/4"w x 21 3/4" x 1"

14" X 14" Plastic Access Panel Removeable/Reversable Door With Frame For Concealed Wall / Ceiling Application - [Outer Dimensions: 16" Width X 16" Height] Compatible with Duct 10" + Product Description Maximize HVAC+ Product Details 14"w X 14"h is the size for the drywall opening measurement only, actual front end outer dimensions are approximately 2" wider. Most common access door Plastic Frame Easy Installation Just apply caulking or glue to the back of the frame Put in frame and lock the door into place Includes slots for a screwdriver or other prying devices Hinges on the top and bottom The door can be easily removed with a slight squeeze Installation