Optional Sizes Small Disposable Helium Gas Cylinder Inquire Buy Now Product Description For the specification about disposible helium gas cylinder as below: Type Test Pressure Thickness Cylinder Size Gross/Net Weight Filling Balloons Package Size Package 30LB 2.3MPa 1.0mm 243*421(mm) 3.2/2.6(kg) 30(9 inches) 245*245*425(mm) Carton 50LB 2.3MPa 1.2mm 303*447(mm) 5.0/4.1(kg) 50(9 inches) 305*305*452(mm) Product Details