Availability: In Stock
The Thermacell C4 Odorless Mosquito Repellent Refill is a fuel-only cartridge pack designed to keep biting insects at bay during hunts, camping trips, and backyard time without smoke, flames, or messy sprays. This 4-pack gives you four 12-hour fuel cartridges—enough for 48 hours total runtime—and works with any Thermacell fuel-powered repeller, lantern, or torch to create a 15-foot zone of protection around your position. If you already own a Thermacell device and just need to refill the fuel, these cartridges are a convenient, long-shelf-life solution that won't require you to buy an entire new unit.
What makes the C4 refill attractive for serious outdoorspeople is its simplicity and reliability. There's no open flame, no messy liquids to handle, and the odorless formula won't interfere with your hunting scent control or turn your campsite into a chemical cloud. Drop a cartridge into your Thermacell device, pair it with a repellent mat (sold separately), and you're protected—ideal for still-hunting setups, base camps, or evening hours when mosquitoes are most active. Each cartridge burns for 12 hours, so a single pack covers a full weekend or several shorter outings.
Storage is straightforward: these cartridges hold up well over time, so you can stock up during the season and know they'll be ready when you need them next year. Whether you're in marsh country, near water, or dealing with thick summer bug pressure, having spare fuel on hand means your Thermacell stays in action all season.
| Product Type | Fuel Cartridge Refill |
| Pack Quantity | 4 cartridges |
| Runtime per Cartridge | 12 hours |
| Total Runtime | 48 hours |
| Protection Radius | 15 feet |
| Brand | Thermacell |
| Compatibility | Thermacell fuel-powered repellers, lanterns, and torches |
Yes, the C4 fuel cartridges are compatible with all Thermacell fuel-powered repellers, lanterns, and torches. They are fuel-only refills, so you'll need to pair them with a Thermacell repellent mat (sold separately) in your device.
Each cartridge provides 12 hours of continuous protection. This 4-pack gives you 48 hours total, which is equivalent to four full days or two complete weekends of use.
This pack contains four fuel cartridges only. Thermacell repellent mats and a repeller device are not included; you'll need to purchase those separately if you don't already own them.
No, the Thermacell C4 is odorless, so it won't interfere with your scent control strategy or alert game animals to your position.
SKU: 115673962 • Width: 3.7in • Height: 1.7in • Depth: 4in • Weight: 0.3oz
Availability: In Stock
The Thermacell C4 Odorless Mosquito Repellent Refill is a fuel-only cartridge pack designed to keep biting insects at bay during hunts, camping trips, and backyard time without smoke, flames, or messy sprays. This 4-pack gives you four 12-hour fuel cartridges—enough for 48 hours total runtime—and works with any Thermacell fuel-powered repeller, lantern, or torch to create a 15-foot zone of protection around your position. If you already own a Thermacell device and just need to refill the fuel, these cartridges are a convenient, long-shelf-life solution that won't require you to buy an entire new unit.
What makes the C4 refill attractive for serious outdoorspeople is its simplicity and reliability. There's no open flame, no messy liquids to handle, and the odorless formula won't interfere with your hunting scent control or turn your campsite into a chemical cloud. Drop a cartridge into your Thermacell device, pair it with a repellent mat (sold separately), and you're protected—ideal for still-hunting setups, base camps, or evening hours when mosquitoes are most active. Each cartridge burns for 12 hours, so a single pack covers a full weekend or several shorter outings.
Storage is straightforward: these cartridges hold up well over time, so you can stock up during the season and know they'll be ready when you need them next year. Whether you're in marsh country, near water, or dealing with thick summer bug pressure, having spare fuel on hand means your Thermacell stays in action all season.
| Product Type | Fuel Cartridge Refill |
| Pack Quantity | 4 cartridges |
| Runtime per Cartridge | 12 hours |
| Total Runtime | 48 hours |
| Protection Radius | 15 feet |
| Brand | Thermacell |
| Compatibility | Thermacell fuel-powered repellers, lanterns, and torches |
Yes, the C4 fuel cartridges are compatible with all Thermacell fuel-powered repellers, lanterns, and torches. They are fuel-only refills, so you'll need to pair them with a Thermacell repellent mat (sold separately) in your device.
Each cartridge provides 12 hours of continuous protection. This 4-pack gives you 48 hours total, which is equivalent to four full days or two complete weekends of use.
This pack contains four fuel cartridges only. Thermacell repellent mats and a repeller device are not included; you'll need to purchase those separately if you don't already own them.
No, the Thermacell C4 is odorless, so it won't interfere with your scent control strategy or alert game animals to your position.
SKU: 115673962 • Width: 3.7in • Height: 1.7in • Depth: 4in • Weight: 0.3oz