Product details:

HVAC Premium has been providing superior in quality service for many many years. Our products are second to none, and weve help numerous contractors, DIY projects, and home improvement & remodeling specialist complete their masterpiece. 22 inchw X 30 inchh Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 23.75 inch Width X 31.75 inch Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLENever Rust - Our high quality rigid aluminum is the longest lasting grille on the market. It will never rust and can be easily cleaned. - Rigid Design - Noise Free Components - No Vibrating Louvers Etc. - Easy Unrestricted Air Flow For Your HVAC System - How To Measure A Grille - Overall