UN Certified Products UN Closing Procedure 20 Liter Pail 90mil (26) UN LID (60) 1 Gallon Bottle D-Style (125) 2.5 Gallon Bottle F-Style (220) 2.5 Gallon Bottle F-Style (250) 2.5 Gallon Samson Stacker (151) 5 Gallon Samson Pak (158) 5 Gallon Samson Stacker (159, 171, 172) 5 Gallon Samson Stacker – Internal Bung Thread (172) 6 Gallon Samson Stacker (176) 6 Gallon Samson Stacker – Internal Bung Thread (176) 70 mm Screw Cap (103)