GE® Wall Case RAB71A is made of galvanized steel with expanded polystyrene foam insulation for long lasting durability. Solid-sided wall case securely holds wall air conditioners. Welded and protected with baked-on enamel. Welded areas protected with sealing compound to prevent rust. Accepts all Zoneline chassis models. Color finish is White. Approximate size is 16" H x 42" W x 13-3/4" D.Weight is 25 lbs.