Thermacell M48 Backpacker Mosquito Repellent Mat Refill 12-Pack 48-Hr

The Thermacell M48 Backpacker repellent refill keeps your Thermacell Backpacker Mosquito Repeller working in the field. This mat-only refill provides up to 48 hours of mosquito and tick protection across 12 repellent mats, creating an odorless, 15-foot zone of coverage with no spray and no mess.

Each mat delivers roughly 4 hours of continuous repellent action when heated inside the Backpacker unit. The active ingredient is Allethrin, a synthetic copy of a natural repellent found in chrysanthemum flowers. The refills are DEET-free and scent-free, making them a practical choice for hunters, backpackers, campers, anglers, and anyone spending extended time outdoors where mosquitoes are a nuisance.

Designed exclusively for the Thermacell Backpacker Mosquito Repeller, these mats slot into the device's heated zone to disperse repellent into the surrounding air. Scientifically tested to effectively repel mosquitoes within a 15-foot radius, the refills keep you protected without skin-applied sprays, lotions, candles, or open flames.

This refill pack contains 12 mats and is intended for users who already own the Backpacker repeller unit. Only genuine Thermacell refills are engineered and tested to deliver the brand's advertised zone of protection and run time.