Profile: Environmental Progress, Inc. specializes in water treatment systems. Our product line includes ST-848 by SteelTec water treatment systems, steeltec RO-335 and blue springs Basics™. Our ST 848 is our most popular residential SteelTec unit. It comes equipped with SteelTec's finest features and is guaranteed to last a lifetime. The size of the ST 848 is what makes it perfect for most residential applications. It is four inches shorter and two inches narrower than it's larger cousin the ST 1052. Our SteelTec reverse osmosis (R.O.) system offers an additional level to drinking water. The water is processed through a series of filters and a membrane and then stored in a pressurized storage tank. If requirement the water is forced out of the storage tank through a special sink mounted drinking water faucet ready for your use.