SPHP: Unique polymer protective coating technology for inner container resists corrosion from hard water Product: 2 years, Heating element: 2 Years, Tank: 5 years HPR(High Pressure Resistance): High Pressure Withstanding capacity makes it suitable for high rise buildings and high pressure pump applications Smart Guard: A special anode used employs an electrolytic process that protects the heating element and tank from corrosion, thus greatly enhancing its life Safety Plus - Provides three levels of safety against high temperature and pressure with cutout, thermostat and safety valve Star Rating : A 3-star rated product. It has high-density and thick PUF that ensures energy efficiency and reduced electricity bills Rust proof: Rust proof outer body prevents corrosion leaving no room for rust. Ensures long life for the water heaters Hygiene no contamination :The super polymer coating ensures no contamination whatsoever, providing hygienic water supply for years