Keep mosquitos away with this pack of Thermacell Mosquito Repellent Refills. Designed for outdoor activities such as camping and hiking, each pack includes 3 butane cartridges and 9 insect repellent mats. The refill pack is compatible with the Thermacell RB-1 model and is EPA registered. The brand Thermacell is well known for its high-quality insect repellent products. This refill pack is specifically formulated to repel mosquitos and other pesky insects, making it a must-have for any outdoor enthusiast. Its compact size and easy-to-use design make it the perfect addition to your camping or hiking gear. Lot of 3.