Description:
The 4000 gram balloon is the MOAB, Mother of All (Weather) Balloons. Despite a long track record of successful high-altitude launches, we still consider the 4000g an experimental balloon, due to its incredible size and lifting capacity. The 4000g balloon is typically excluded from burst calculators and we only recommend this balloon for users with extensive high altitude balloon experience.

Specifications:
Weight: 4000 grams
Material: Natural Latex, No Preservatives
Biodegradability: 100%, 24-36 Months All Conditions
Inflation Gas: UHP Grade 5 Helium/ Hydrogen
Payload: 4-18 lbs (50 lbs max)
Rate of Ascent: 320m/min
Burst Diameter: 50.59ft
Burst Altitude: 120,000- 140,000ft
Neck Diameter: 5.0cm
Neck Length: 12.0cm

Compatible Accessories:
Rocketman High Altitude Balloon Parachutes
Rocketman Quick Disconnect Weather Balloon Inflator
Rocketman Quick Disconnect 5cm Nozzle
En-Sci Ratcheting Balloon String Reel
Rocketman Ground Screw & Scale Kit

Return & Refund Policy
All balloons are inspected and inflated prior to sale, with care taken at every step to ensure the reliability and performance of every balloon. If any changes need to be made to your order, or you would like to cancel your order, please give us a call at (609) 844-0055.

Due to the delicate nature of latex balloons and our performance guarantee, we cannot accept returns or exchanges once a balloon has been ordered and shipped. For any questions, please give us a call at (609) 844-0055.