FEATURES
- Refill kit is compatible for all Thermacell products
- Refill kit contains 12 mats & 4 butane cartridges
- Each kit provides 48 hour mosquito repellent
- Creates a 21 square metre bug free zone
- Each mat contains allethrin, a synthetic extract of the Chrysanthemum
- Each mat provides 4 hour protection
- Repellent Mats turn from pale blue to white when active ingredient is exhausted