1550EU Protector CaseInterior: 449 318 171 mm Exterior: 499 393 191 mm Watertight, crushproof, and dustproof Open cell core with solid wall design strong, light weight Comfortable rubber over moulded handle Easy open double throw latches Stainless steel hardware and padlock protectors Automatic pressure equalization valve balances interior pressure, keeps water out O ring seal Made in Germany Sensitive equipment needs protection, and since 1976 the answer has been the