Hindustan Unilever Limited offers Home Water Purifier [Pureit]. Hindustan Unilever Limited is the supplier of consumer products. Home Water Purifier [Pureit] is used to render water micro-biologically safe, makes the water clear, odourless and good-tasting. Home Water Purifier [Pureit] is available with Germkill battery kill technology that typically lasts for 1500 litres of water.