Water Purifier with Inbuilt 4 Litres Storage Tank is based on unique ultra filtration membrane technology and it is the only water purifier that protects from harmful water borne diseases. Permionics Membranes Pvt Ltd manufactures Water Purifier with Inbuilt 4 Litres Storage Tank. Permionics Membranes Pvt Ltd also manufactures various types of membranes. The Water Purifier with Inbuilt 4 Litres Storage Tank, Model Pureflo, is used to remove turbidity and colloidal matter. This Water Purifier has an output of 6-8 litres an hour when measured at 0.3 kg / sq. Cm. Line pressure. This Water Purifier has physical dimension are 425 X 220 X150 mm And weight of 3 kg.