This foundation vent is both decorative and functional, making it ideal for venting crawl spaces in new construction and remodeling. Its trim ring features an exclusive lock that allows for speedy installation with a variety of siding materials, including fiber cement, wood, vinyl, aluminum, stucco, and hardwood. With a contoured design and a molded-in screen, this vent helps prevent blowing rain and bugs from entering, while offering a net free area of 50 sq. in. The flanges can be folded to fit standard 8 in. x 16 in. block openings, and the finish trim ring can be adjusted to accommodate different siding thicknesses.