The Thermacell Multi‑Insect Repellent Refill Kit is designed to extend the performance of compatible fuel‑powered Thermacell repellers, delivering effective area protection against mosquitoes, black flies, and no‑see‑ums. The system uses heat‑activated repellent mats to create a scent‑free vapor barrier in the air, providing up to a 15‑foot zone of protection for mosquitoes and approximately a 10‑foot zone for smaller biting insects. This EPA‑registered formulation is independently tested for safety and effectiveness when used as directed, allowing protection without sprays, lotions, smoke, or open flame.

The kit includes five 12‑hour fuel cartridges and fifteen repellent mats, each providing up to 4 hours of use, offering extended coverage for outdoor activities. Compatible with most Thermacell fuel‑powered devices except Backpacker models, the refill system supports continued use in hunting, camping, and general outdoor environments. Designed for convenience and consistent performance, it provides reliable, hands‑free insect protection while remaining safe for use around people and pets when operated according to instructions.

Compatible with all fuel-powered Thermacell repellers except the Backpacker.