10"W X 4"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 11.75"W X 5.75"H] mobile home rv our Galvanized Duct Boot is

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

It also has a lock catch built in for your convenience

Compatible with a wide range of ventilation applications

+ Product Details Size – 8"w X 14"h is the size for the duct opening measurement only

stud wall anchor kit) to install on 12mm drill holes

10"W X 4"H [Duct Opening] Never Rust Plastic 2-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 11.75"W X 5.75"H] mobile home rv our Galvanized Duct Boot is+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" width X 5. 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