Thermacell Butane Only Refill Cartridge (4-Pack)

Thermacell cartridge refill effectively repels mosquitoes by creating a 15-foot zone of protection when used with Thermacell devices and Thermacell repellent mats. Use this fuel-only refill for when you have spare Thermacell repellent mats. Provides up to 48 hours of use in Thermacell mosquito repellers. Can be stored for long periods of time. Package contains: 4 fuel cartridges each lasting 12 hours.