CryoFX Cryo Gun + CO2 Backpack FX - CO2 Jet Fogger - Handheld Fog Blast Lightweight and Compact Complete Set Backpack Handles up to 20lb CO2 Cylinders Includes all necessary straps and parts. Includes 5' feet of hight pressure hose, fittings, and manual. Easy and fast assembly when mounting a CO2 bottle. Plug and Play setup ready to go in minutes Use with special effects co2 systems or any use which requires a 20lb or less Co2 Cylinder