OFF! Mosquito Coil Refills (4-Pack)-21817 - The Home Depot
PIC Mosquito Repellent Coils contain a proven formula PIC Mosquito Repellent Coils contain a proven formula of Pyrethrum. Each coil lasts up to 5 to 7 hours. Comes with reusable metal stands. Mosquito Coils help repel mosquitoes in confined areas outdoors. It is useful in places where there is little or no breeze such as patios and porches.