1750 Protector Long CaseInterior: 1283 343 133 mm Exterior: 1346 406 155 mm Strong polyurethane wheels with stainless steel bearings Watertight, crushproof, and dustproof Open cell core with solid wall design strong, light weight Easy open double throw latches Fold down handles Stainless steel hardware and padlock protectors Automatic pressure equalization valve balances interior pressure, keeps water out O ring seal Sensitive equipment needs protection, and since 1976 the