Small cylinder of helium (120 cu ft or M size)
The cylinder will fill approximately 175 11” latex balloons (no guarantee on # it fills) or about 200 18” mylar balloons.
The cylinder weights approximately 55 lbs. and is 7 inches in diameter and about 43 inches tall.
Large cylinder (242 cu ft or K size)
This cylinder will fill approximately 375 – 450 11” latex balloons (no guarantee on # it fills) or about 450 18” mylar balloons.
The cylinder is weights approximately 130 lbs. and is 9.5 inches in diameter and about 56 inches tall.