These mat-only refills from Thermacell are compatible with the Backpacker Mosquito Repeller and help to repel mosquitoes and midges within 15 feet creating a mosquito-free zone.

The refills contain Allethrin, a synthetic based on a natural repellent that can be found in the chrysanthemum flower. They are entirely scent-free, DEET-free and are available in either 6 or 12 refill packs (4-hours per refill).

• Backpacker Mosquito Repeller Refills
• Creates a 15-foot mosquito-free zone
• Scent-free & DEET-free
• Active ingredient: Allethrin
• 4-hour life-span per refill
• Available in 6 or 12 refill packs
• Mat size: 5cm x 4cm