Thermacell R4 Repellent Refill 15 ft 4 Fuel Cartridges/12 Mats

The Thermacell R4 Repellent Refill is the 48-hour value-pack refill set for fuel-powered Thermacell Repellers, Lanterns, and Torches. It creates a scent-free 15 ft zone of protection that repels mosquitoes, black flies, and no-see-ums out of your campsite, hunting spot, patio, or backyard without sprays, smoke, open flame, or DEET.

Each pack includes 12 repellent mats rated at up to 4 hours of protection per mat, plus 4 butane fuel cartridges rated at up to 12 hours of heat per cartridge, giving you up to 48 total hours of mosquito defense. The active ingredient is Allethrin, a synthetic version of a naturally occurring repellent found in chrysanthemum flowers.

Drop a mat into your existing Thermacell device, click in a fuel cartridge, and the butane gently heats the mat to disperse repellent evenly into the surrounding air. There is no open flame, no smoke, no spray, and no mess, making this refill ideal for camp, tree stands and ground blinds, decks, and gardens. For outdoor use only.

This is new current-production Thermacell stock, sold as a 4 fuel cartridge / 12 mat refill value pack.