Watsan Private Limited aims to provide clean drinking water through affordable, electricity-free and maintenance-free water purifiers. Their clay-based purifiers are 60% cheaper than standard purifiers, do not require electricity or frequent filter changes. They seek $1.5 million in funding to expand marketing and production capabilities to reach 1 million households in India over 2 years and generate $18 million in revenue, improving access to clean water for 4 million people. The company's purifiers have won several national awards and removed contaminants like pathogens, heavy metals, odor, and arsenic/fluoride.