The Dolphin Gold+ RO comes with standard Aqua filters, Alkaline Filter and complete installation kit. The RO Membrane will cover standard TDS of water (e.g. up to 1500 TDS), Tested @ 1000 TDS of raw water. Most trusted and largest selling RO water purifier with a BEST design that shows off Dolphin & Aqua RO technology. Best suited for Indian homes and offices and suitable for purification of brackish/tap water/municipal corporation water supply.