Enjoy the outdoors more with the Thermacell Rechargeable Mosquito Repeller Refill. It's compatible with all Thermacell rechargeable Repellers and provides a 20-foot zone of protection for up to 36 hours. Perfect for keeping your campsite or patio pest free. Mosquito Repeller Refill 20-ft. zone of protection 36 hours of continuous protection No smoke, flames or strong scents Compatible with all Thermacell Radius and rechargeable RepellersPlease Note: Not compatible with fuel-powered Repellers