Thermacell Refill Backpacker 48h 299 kr Refill for Thermacell Backpacker. Contains 12 mosquito repellent mats providing 48 hours of effective mosquito protection. In stock. Add to Cart Article Number: 1334 Share Information Refill for Thermacell Backpacker. Contains 12 mosquito repellent mats providing 48 hours of effective mosquito protection.