Thermacell Mosquito Repellent Refill R-4 48H – 12 Mats & 4 Cartridges, Odorless, DEET-Free

The Thermacell Mosquito Repellent Refill R-4 48H is a high-performance, odorless repellent solution designed for outdoor use. This value pack includes 12 repellent mats and 4 butane cartridges, providing up to 48 hours of total protection against mosquitoes, black flies, and midges. Each mat lasts 4 hours, and each cartridge runs for 12 hours, making it ideal for camping, hiking, patios, and other outdoor activities. The active ingredient, D-cis/trans Allethrin, is DEET-free and safe for use around family and pets when used as directed. Compatible with all Thermacell repellers (e.g., MR300, MR450, Patio Shield), this refill creates a 15-20 sq ft protection zone per device without open flames or messy sprays.

Advantages

Enjoy up to 48 hours of continuous, odorless mosquito protection. The DEET-free formula is gentle yet effective, and the compact design makes it easy to carry and replace. No open flame means safe operation in tents, gazebos, and other enclosed outdoor spaces.

Suitable for

• Camping, hiking, and fishing trips
• Patio, deck, and backyard gatherings
• Outdoor dining and barbecues
• Hunting and wildlife observation

Key specifications

• Product Type: Mosquito Repellent Refill
• Total Protection Duration: 48 hours
• Repellent Mats Included: 12
• Butane Cartridges Included: 4
• Protection Duration per Mat: 4 hours
• Run Time per Butane Cartridge: 12 hours
• Active Ingredient: D-cis/trans Allethrin
• Scent: Odorless
• Pest Targeted: Mosquitoes, Black Flies, Midges
• Compatibility: All Thermacell Repellers
• Application Environment: Outdoor
• DEET-Free: Yes
• Coverage Area: 15-20 sq ft per device
• Pack Type: Value Pack

Recommendations

For best results, use with a Thermacell repeller device. Replace mats and cartridges as needed. Store in a cool, dry place away from direct sunlight.