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MIT professor-led startup launches Rs 899 water tap filter
DetoXyFi, a startup led by MIT professor Rohit Karnik and IIT Delhi graduate Dhananjay Goel, has launched Jal Kavach, a water tap filter priced at Rs 899 in India. The product removes…
DetoXyFi, a startup led by MIT professor Rohit Karnik and IIT Delhi graduate Dhananjay Goel, has launched Jal Kavach, a water tap filter priced at Rs 899 in India. The product removes 99.9% of bacteria, requires no electricity, and wastes no water, unlike RO purifiers. The team presented it at the EAW Global Aqua Expo 2026 in New Delhi in early August.
The filter uses a composite membrane with activated charcoal and steel mesh to remove particles, sand, rust, and chlorine. It can filter about 7,500 litres, lasting four months to over a year depending on water quality. The startup began sales in June 2025 on platforms like Amazon and Flipkart, earning Rs 5 lakh in 2025 and Rs 20 lakh in revenue so far in 2026.
The company aims to replace RO purifiers in Indian homes, citing their high electricity use, maintenance costs, and water wastage, three litres wasted per litre purified. The team is upgrading the product but faces consumer trust issues, as many Indians are accustomed to RO filters.
Indian Opinion Analysis
India's drinking water crisis affects crores of households, with many relying on expensive RO systems that waste water. The Jal Kavach filter's Rs 899 price point targets the mass market, but its 7,500-litre lifespan means recurring costs for replacement filters. RO purifiers typically cost Rs 5,000-20,000 and require electricity, making DetoXyFi's offer competitive if durability matches claims. The startup must scale manufacturing and build trust against established brands. Watch for sales data in the next quarter to gauge market adoption.
Source: theprint.in
This story was synthesised by AI from the source linked above.
