This Heritage horizontal slider window (Model #V001126025) features a white vinyl frame with dual-pane glazing for improved energy efficiency and noise reduction. Actual dimensions are 29.5"W x 17.5"H, designed to fit a 30" x 18" rough opening. The horizontal sliding operation makes it easy to use in basements, bathrooms, or utility spaces. Item is like new in original box with no damage or missing components reported. Verify local building codes and installation requirements before purchase.