14"W X 6"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 15.75"W X 7.75"H] 16" Diameter For 12" Round Duct Opening

For 12" Round Duct Opening - Spiral or Flex

our Galvanized Duct Boot is made of high-quality galvanized sheet metal with crimped ends (snap-lock design) for easy fitting and secure connection

positioning supply and return grills accordingly

Actual Filter Size – 13 3/4"w x 17 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 30" OR 30" x 36" duct opening (measured at the opening)

14"W X 6"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 15.75"W X 7.75"H] 16" Diameter For 12" Round Duct Opening+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 7. 75" height. Design Rigid gauge ABS plastic. Rigid gauge built for durability and long life in mind, but still light and handy. Powder coat finish. Smooth, scratch resistant, beautiful. Looks like new after years of use. Screws Included High Quality High quality ABS plastic will never rust, no sharp