For converting standard versions with a short housing into a version with a long housing. Conversion possible directly on site. Protects motor and impeller. Protected against the weather by sheet steel with epoxy coating. Special design: Housing extensions for sizes 140 and 160 are available on request: GVI 80, material: sheet steel, epoxy-coated, colour: grey, weight: 20 kg, weight with packaging: 20 kg, width: 910 mm, height: 910 mm, depth: 280 mm, width with packaging: 910 mm, height with packaging: 910 mm, depth with packaging: 280 mm.