Specification Brand : LiquaGen BulletPoint : For 150 Gallons Per Day Membranes BulletPoint1 : 140 per pack melting point tubes with one end sealed and one end open. 1.3-1.5mm inner diameter, 1.6-1.8mm outer diameter, 100mm length. BulletPoint2 : Convenient packaging with 3mm hole on cap for easy tube drawing without need to open the cap or keeping it open all the time. BulletPoint3 : Country of Origin: United States BulletPoint4 : Package Dimensions: 2.3 L x 17.4H x7.1W x(centimeters) BulletPoint5 : As shown in photos, approximate spotting volume as tested for water is 65mm x (0.12mm)² x 3.14 = 3µL. Testing method used is having the tube at a straight up angle and allowing the liquid to keep on climbing until it stops. If spotted at a tilted angle the draw volume can be larger, if reducing the spotting time the volume will be smaller. Most organic solvents will climb up to a lesser height, and have a smaller draw volume than water. On average about half the amount. Capacity : 50 milliliters Color : Green ExternallyAssignedProductIdentifier : 5282799502759 ExternallyAssignedProductIdentifier1 : 0617629986822 ExternallyAssignedProductIdentifier2 : 617629986822 IncludedComponents : Melting Point Tubes ItemDisplayDimensions_Length : 100 millimeters ItemLength : 25 centimeters ItemName : LiquaGen - Reverse Osmosis Flow Restrictor Capillary Tube Insert for all RO systems (150GPD) ItemPackageDimensions_Height : 14.1986 centimeters ItemPackageDimensions_Length : 5.207 centimeters ItemPackageDimensions_Width : 6.2992 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-capillary-tubes Manufacturer : LiquaGen Water Material : borosilicate glass ModelNumber : 617629986822 NominalWallThickness : 0.1 month NumberOfBoxes : 1 NumberOfItems : 140 PartNumber : 617629986822 ProductBenefit : Improves efficiency of RO systems ProductDescription : 8pcs OD 2mm ID 1.8mm Length 250mm 304 Stainless Steel Capillary Tube ProductSiteLaunchDate : 2014-08-15T07:00:00.000Z Size : 150GPD SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1