Spray-free, invisible, odorless protection
Butane cartridge lasts for 12 hrs.
Each mat provides 4 hrs. of protection
Can be stored for long periods of time
Fits all ThermaCELL models
Provides everything your ThermaCell Mosquito Repellent Unit needs to provide hours of spray-free, invisible, and odorless protection from mosquitoes. Refill kit fits all ThermaCELL models. Butane cartridge lasts up to 12 hours, with each mat providing up to 4 hours of protection. Refills can be stored for long periods of time, including between uses. Includes 3 mats and one butane cartridge (up to 12 hrs. protection).