Features: Lightweight and compact hollow-fiber membrane system can effectively provide clean and safe water. Chemical free,provide at least 1,000 liters of clean and safe drinking water from any source like creeks and streams. Easily attaches to your drinking pouch,standard disposable water bottles with 28mm thread,hydration packs,or use with silicone straw to drink directly from your water source. Convenient cap protects from dust and stains. Carabiner clip for easy carrying and hanging. Perfect for outdoor,emergency,camping,hiking,backpacking etc. Specification: Color: Green/Blue (optional) Material: BPA Free ABS Water Filter size: 128*30mm/5.0*1.2in Filter Capacity: 1000L Flow rate: 550ml/min Filter accuracy: 0.01 micron (minimum) Silicone straw length: 200mm/7.9in Weight: Approx. 64.9g/2.3oz Package List: 1* Water Filter 1* Carabiner Clip 1* Straw