These filters are also commonly know as sport bottle filters. This is because they are only a modified sports bottle who has a filter attached to the straw. Whenever drink the actual straw it's filtered in order to your mouth, pretty cool idea if you ask m …

Reverse Osmosis Systems - Reverse osmosis or Ur.O. works by using water pressure to make it worse the Gravity Water Filter go via a semi permeable membrane to contaminants. As your water goes those the membrane the contaminants and also beneficial minerals …