The Nasgas NEG-40 is an electric storage geyser designed for domestic use, offering efficient and reliable hot water delivery. Equipped with a 2000 W imported steel heating element, it warms water quickly and maintains temperature steadily. The unit features a rotary thermostat to let users adjust temperature as needed, along with an anti-scaling rod to reduce mineral buildup and prolong the heating element’s life. 

Its tank is made of heavy gauge galvanized steel, providing resistance to rust and corrosion. To conserve energy, it uses glass wool insulation that reduces heat loss. The structure is reinforced with IIL transmission pipes and X-ray welded joints to ensure leak resistance and durability.

Safety is addressed with features like a safety valve and pressure gauge to prevent overpressure, and the design accounts for overheating protection. 

With a heating capacity of about 10 gallons per hour, this geyser is suited for small to medium households. 

Given the consistency across multiple sellers, this is a well-defined model in the market, although you should always verify local variant specs (e.g. voltage, capacity) before publishing.