The ThermaCELL Mosquito Repellent Replacement Butane Cartridges for ThermaCell (2-Pack) helps you keep your home or patio free from mosquitoes, black flies and no-see-ums. These butane cartridges provide relief for up to 12 hours each.

　　- Replaces used butane cartridges in ThermaCELL mosquito repellant products

　　- Compatible with all ThermaCELL mosquito repellant products

　　- Lasts for 12 hours

　　- Covers an area 15 ft. x 15 ft.

　　- Does not include repellant mats but does include 2 butane cartridges