India’s highest warranty water tank, Sintex Eterno, is designed for unmatched safety, hygiene, and long-term performance. Built with advanced Active Silver Technology, it actively protects stored water from harmful bacteria, viruses, algae, and fungi, ensuring safer and cleaner water for everyday use. Backed by an industry-leading 50-year warranty, Sintex Eterno stands for durability, trust, and peace of mind.
India’s highest warranty water tank, Sintex Eterno, is designed for unmatched safety, hygiene, and long-term performance. Built with advanced Active Silver Technology, it actively protects stored water from harmful bacteria, viruses, algae, and fungi, ensuring safer and cleaner water for everyday use. Backed by an industry-leading 50-year warranty, Sintex Eterno stands for durability, trust, and peace of mind.





Sintex TruPUF insulated water tanks are engineered to handle extreme conditions. The thick 50 mm PUF insulation helps maintain water temperature by reducing heat transfer. These tanks can effectively withstand temperatures ranging from –40°C to +80°C, ensuring your water stays cooler in summer and protected from freezing in winter. This makes them one of the best water tank choices for both residential and commercial needs.
Yes, Sintex TruPUF PUF insulated water tanks are 100% safe for drinking water. They are made using food-grade virgin plastic and come with Active Silver Technology that prevents bacteria, virus, algae, and fungus growth inside the tank. The PUF insulation also keeps water fresh for longer by protecting it from extreme heat or cold. With a UV-protected threaded lid and secure locking, these tanks ensure your drinking water stays clean, hygienic, and contamination-free.
Yes, Sintex TruPUF PUF insulated water tanks are designed for outdoor installation. They come with a UV-protected outer layer that prevents damage from sunlight, and the PUF insulation keeps the water safe from extreme temperatures. Whether used as an overhead water tank or placed in open areas, these tanks ensure durability, hygiene, and long-lasting performance.
A PUF insulated water tank like Sintex TruPUF should be cleaned at least once every 6 months. Regular cleaning helps remove sediment, dust, and any microbial deposits that may build up over time. Thanks to features like Active Silver Technology and a UV-protected threaded lid, these tanks resist bacterial and algae growth, which reduces the cleaning frequency compared to regular plastic water tanks. However, routine maintenance ensures your drinking water stays fresh, safe, and contamination-free.
No, there are no health risks with Sintex TruPUF PUF insulated water tanks. They are manufactured from 100% food-grade virgin plastic and are ISI certified for safety and quality. The tanks also feature Active Silver Technology, which prevents bacteria, virus, algae, and fungus growth. The PUF insulation is purely for thermal protection and does not come in contact with the stored water. With a UV-protected threaded lid and secure locking, these tanks ensure your drinking water remains safe, hygienic, and contamination-free.
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