12" X 12" Steel Access Panel Removable Door For Wall / Ceiling Application (Lock and Key) With Frame - [Outer Dimensions: 13" Width X 13" Height] Round Damper Ring Actual Filter Size – 35

Actual Filter Size – 35 3/4"w x 23 3/4" x 1"

making them ideal for any vents in your home or office

Roundover Beveled Edges

Actual Front End Outer Dimensions Are 12" Width X 8" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Strongest Magnets – Our anisotropic magnetic vent covers provide the strongest magnetization and seal to your register grilles

12" X 12" Steel Access Panel Removable Door For Wall / Ceiling Application (Lock and Key) With Frame - [Outer Dimensions: 13" Width X 13" Height] Round Damper Ring Actual Filter Size – 35+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13" width X 13" height Installation Easy installation just screw the sides of the access panel frame into your duct hole see photos for example. Our HVAC Access Door can be used in both commercial and residential settings. Design Easy access removable door provides easy access removable door for HVAC, plumbing,