These Butler Pressure Spray Tank Storage Containers are designed for organizing and securing 1, 2 or 3 gallon spray tanks. Constructed of aluminum with a silver-textured finish. Features; aluminum construction, silver texture finish, 8-1/2"W x 8-1/2"D with 9" sides and padding on base to help protect finish. Can be installed on GM vans. Rear door trim required for installation.