• Effective Repellent Formula: Thermacell Mosquito Repellent Rechargeable Refills create a 20-ft (6-m) zone of repellency against mosquitoes – Thermacell's largest zone yet. 72-hr refill pack compatible with all Thermacell rechargeable repellers.
• Long-Lasting Defense: Scent-free refills provide 72 hours of on-demand, continuous mosquito repellent. Portable and air travel friendly.
• Heat-Activated Technology: Thermacell rechargeable devices are powered by a lithium-ion battery. Heat activates the repellent to provide maximum repellency in 15 minutes.
• Repel Without Sprays Or Scent: Repel mosquitoes without chemical sprays, lotions, or DEET on your skin. No smoke, flames, or scents.
• People And Pet-Friendly: Powerful outdoor area repellent for people and pets. Independently evaluated for safety and effectiveness. Always use as directed.
• Includes: Two 36-hour repellent refills.

For the backyard and beyond, Thermacell Rechargeable Repellent Refills keep your devices running for the long haul. Featuring a 20-ft (6-m) zone of repellency against mosquitoes – our largest zone yet. Always be prepared by keeping extra cartridges in your tent, backpack, garage, or tackle box. Portable and air travel friendly. (Compatible with Thermacell Rechargeable Repellers only.)