GREENTEK is one of best quality OEM manufacturer of Solar Water Heater Tanks India both pressurized and Non Pressurized with BIS mark. Solar tank is made up of high-quality SS material which is light in weight and it does not get corrode easily with salty water.Each tank has been insulated with high-density PUF (play urethane foam) Installation of 50mm thickness between inner outer tanks ensures maximum heat retention every season. Our tank sizes are 100L, 200L, 250L, 500L, 1000L , 2000L