





Crafted from high-density, food-grade plastic, these threaded stoppers are built to withstand constant use in extreme temperatures. The precision-engineered threads provide a smooth, airtight closure, ensuring that your beverages remain piping hot or ice-cold for hours. Unlike universal caps, these are mission-specific accessories tailored to the exact internal geometry of the Bullet 500, 750, and 950 models, providing a reliable barrier against the elements.
The lightweight design adds minimal bulk to your pack, with the Bullet 500 version weighing only 0.67 oz and the larger 750/950 version at 0.88 oz. The BPA-free material is easy to sanitize and resistant to odor absorption, making it suitable for coffee, tea, or nutrient-dense soups. Keep your Bullet series performing at its peak with a component built for a lifetime of rugged outdoor service.
PRO-TIP FOR PEAK PERFORMANCE: To ensure the longest possible heat retention, always check that the silicone seal is properly seated before threading the stopper. For deep cleaning after multi-day treks, soak the stopper in warm water with mild detergent to remove any residue from the internal threads and seal areas.
Specifications
| Characteristic | Bullet 500 Stopper | Bullet 750/950 Stopper |
|---|---|---|
| Weight (US) | 0.67 oz | 0.88 oz |
| Weight (EU) | 19 g | 25 g |
| Compatible Models | Bullet 500 (17 oz) | Bullet 750 (25 oz) / 950 (32 oz) |
| Material | High-Density Food-Grade Plastic (BPA Free) | |
| Construction | Precision Threaded Vacuum Stopper | |
| Maintenance | Sanitary / Easy-to-clean design | |
| Best Use | Thermos Maintenance & Repair | |
| Product Type | Original Replacement Accessory | |
Features
- OEM Integrity: Genuine manufacturer replacement parts designed specifically for Terra Incognita Bullet flasks.
- Vacuum Seal Technology: Precision threading ensures an airtight fit for maximum thermal insulation.
- Food-Grade Safety: Constructed from high-quality, non-toxic plastic that is 100% BPA-free.
- Impact Resistant: Rugged build quality designed to handle the pressure and heat of backcountry use.
- Model-Specific Fit: Optimized dimensions for both the 17 oz (500ml) and 25/32 oz (750/950ml) Bullet series.
- Lightweight Utility: Engineered for minimal weight impact on your total gear load.
Crafted from high-density, food-grade plastic, these threaded stoppers are built to withstand constant use in extreme temperatures. The precision-engineered threads provide a smooth, airtight closure, ensuring that your beverages remain piping hot or ice-cold for hours. Unlike universal caps, these are mission-specific accessories tailored to the exact internal geometry of the Bullet 500, 750, and 950 models, providing a reliable barrier against the elements.
The lightweight design adds minimal bulk to your pack, with the Bullet 500 version weighing only 0.67 oz and the larger 750/950 version at 0.88 oz. The BPA-free material is easy to sanitize and resistant to odor absorption, making it suitable for coffee, tea, or nutrient-dense soups. Keep your Bullet series performing at its peak with a component built for a lifetime of rugged outdoor service.
PRO-TIP FOR PEAK PERFORMANCE: To ensure the longest possible heat retention, always check that the silicone seal is properly seated before threading the stopper. For deep cleaning after multi-day treks, soak the stopper in warm water with mild detergent to remove any residue from the internal threads and seal areas.
Specifications
| Characteristic | Bullet 500 Stopper | Bullet 750/950 Stopper |
|---|---|---|
| Weight (US) | 0.67 oz | 0.88 oz |
| Weight (EU) | 19 g | 25 g |
| Compatible Models | Bullet 500 (17 oz) | Bullet 750 (25 oz) / 950 (32 oz) |
| Material | High-Density Food-Grade Plastic (BPA Free) | |
| Construction | Precision Threaded Vacuum Stopper | |
| Maintenance | Sanitary / Easy-to-clean design | |
| Best Use | Thermos Maintenance & Repair | |
| Product Type | Original Replacement Accessory | |
Features
- OEM Integrity: Genuine manufacturer replacement parts designed specifically for Terra Incognita Bullet flasks.
- Vacuum Seal Technology: Precision threading ensures an airtight fit for maximum thermal insulation.
- Food-Grade Safety: Constructed from high-quality, non-toxic plastic that is 100% BPA-free.
- Impact Resistant: Rugged build quality designed to handle the pressure and heat of backcountry use.
- Model-Specific Fit: Optimized dimensions for both the 17 oz (500ml) and 25/32 oz (750/950ml) Bullet series.
- Lightweight Utility: Engineered for minimal weight impact on your total gear load.
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