The Thermacell Fuel‑ZoneGuard Refill Kit is designed to extend the runtime and effectiveness of compatible fuel‑powered Thermacell repellers, delivering consistent area protection without sprays or direct skin application. Using a heat‑activated system, the refills disperse a scent‑free vapor that creates a protective zone of up to 15 feet against mosquitoes. The proprietary formula, containing 21.97% d‑cis allethrin, is EPA‑reviewed and independently tested for performance and safety when used as directed, making it suitable for use around people and pets in outdoor environments.

This kit includes ten 12‑hour fuel cartridges and thirty 4‑hour repellent mats, providing extended coverage for repeated use in camping, hunting, or backyard settings. Compatible with all Thermacell fuel‑powered systems except Backpacker models, the refills are easy to install and activate with push‑button operation on the host device. The system operates without smoke, open flame, or DEET, offering clean, low‑maintenance insect protection designed for reliable, long‑term outdoor use.

Compatible with all fuel-powered Thermacell repellers except rechargeable models