Helium Products Helium Chart Hico offers helium cylinders of all sizes and delivery to the St. Louis and St. Louis Vicinity area. Small Medium Large Extra Large 80 cubic feet 125 cubic feet 242 cubic feet 291 cubic feet 2′ 6″ Tall 4′ Tall 4′ 9″ Tall 5’1″ Tall Please email order@hicoballoons.com for rental details Balloon Size Tank Size 11″ or 12″ Latex 17″ Latex 36″ Latex 5 1/2′ Advertising 18″ Mylar Extra Large 548 194 20 3 648 Large 465 160 17 2 484 Medium 225 83 8 1 272 Small 85 53 5 0 125 Nitrogen (244 cubic feet)
