Description:  -Provide pure water to drink every day.  -Protect your home, health and appliances by filtering water.  -Five specifications to choose from: 50G or 75G or 200G or 300G or 400G or 600G.  -Suitable for perfect use in reverse osmosis systems.  -Removes up to 99.99 percent of heavy metals, total dissolved solids (TDS), bacteria, arsenic, chlorine, cadmium, pyrogens, Giardia, cyanide, etc.  -High standard and best filtration.     Specification:  Color: Orange or Blue.  Type Size:  A: 1810-50 45 x 250mm.  B: 1810-75 45 x 250mm.  C: 2012 (1: 1) 48 x 298mm.  D: 2812-200 68 x 298mm.  E: 3012-300 75 x 297mm.  F: 3013-600 68 x 333mm.     Description:  xE.g: The yield is 75 grams and 1 gram is 3.785 liters.  75 grams is the 24-hour water production.  75x3.785 is the total amount of water produced in a day.     Package Included:  1 reverse osmosis water system filter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.