Filter Caps, is a unique water filter in the world because in just 6X4 cm and 24 g, it can reach where no other type of safe water system does. Focused on generating a universal design, Filter Caps is developed with the universal PCO 28 mm thread, which fits any type of bottle. Additionally, it uses 3D additive technology composed of minerals, metals, and natural extracts, making it accessible, affordable, cost-effective, and capable of reclaiming over 300,000 liters of water in just 2 months, with a simple movement.