UltraPRESS Titanium-Covert BlackThe perfect hunting and adventure ready water purifier Unequalled versatility. That's Grayl Ti. Filter and purify by the waters edge and bring it back to camp to boil alongside hot coals, or place it direct on a backpacking stove. It's the world's first titanium water filter bottle and also the first to be compatible with electrolyte and drink mixes. No more single use water bottles With the UltraPRESS Titanium, you have a water filter and water