AgriLabs CO2 Propellant 90g 2-Pack for VetGun Livestock Delivery SystemAgriLabs CO2 Propellant for VetGun 90g 2 Pack includes two one time use CO2 canisters designed for use with the VetGun livestock health delivery system. Each 90g CO2 cartridge provides enough propellant for approximately 90 discharges, helping keep your VetGun ready for farm and ranch use. Ideal to keep as backup propellant supplies for consistent VetGun performance. Key Bullet Points: CO2 propellant cartridges made for AgriLabs VetGun systems 90g one