Specification Brand : GSC International BulletPoint1 : The center reservoir is a attached to the Hoffman electrolysis with a piece of rubber tubing BulletPoint2 : Package Dimension : 17.2 centimeters L x 21.6 centimeters W x 61.4 centimeters H BulletPoint3 : Country of Origin: CHINA BulletPoint4 : Item Package weight : 0.917 kilograms ExternallyAssignedProductIdentifier1 : 0680599008047 ExternallyAssignedProductIdentifier2 : 680599008047 ItemName : GSC International 57001 Hoffman Electrolysis Apparatus, Glass Part Only ItemPackageDimensions_Height : 61.4 centimeters ItemPackageDimensions_Length : 17.2 centimeters ItemPackageDimensions_Width : 21.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : lab-distillation-apparatus Manufacturer : Thomas Scientific Material : Resin ModelNumber : 57001 NumberOfItems : 1 PartNumber : 57001 ProductBenefit : Ensures optimal distiller performance with regular pre-filter replacement ProductDescription : Pre-filters are recommended to be changed every 6 months or so, depending on the quality of the source water. ProductSiteLaunchDate : 2015-03-07T08:54:08.817Z UnitCount : 1 UnspscCode : 41000000