So how many stars are there in the Universe? It is easy to ask this question, but difficult for scientists to give a fair answer! Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way.
Reverse osmosis. Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.
Filox-R is a superior high efficiency media that removes iron, hydrogen sulfide and manganese. This product is popular for having the highest flow rate of any standard iron removal media, and for its excellent filtration media that outperforms traditional Greensand and Birm.