Therma Cell Insect repellent dispenser uses and unscented mats and butane. Appliance keeps hunters mosquito free for up to 12 hours in a 15 x 15 feet comfort zone. Light weight and ergonomic. The unit measures 8" long and weights 7 oz with a full butane cartridge. Palm fitting grasp ensure easy transport and use. A quiet on and off button won't disturb wildlife. Unscented repellent mats emit allethrin to repel mosquitoes, no see ums, black flies and flying insects. Availability: Usually ships the same business day 75321$29.99 Therma 12 hour Refill Value PackTherma Cell 12 hour refill pack. Availability: Usually ships the same business day 18551$9.99 Therma 48 hour Refill PackTherma Cell 48 hour refill pack. Availability: Usually ships the same business day 59944$24.99 For orders or for a copy of our Free Catalog call 1-800-762-2706. Wholesale Catalog available also, Call for details. R-P Outdoors PO Box 1170 505 Polk Street Mansfield La. 71052