Product Features:
• Capable of keeping simming pool nice and clean
• Easy to pour easy to use.
• Composed of #20 sand that does an amazing job 
  at filtering dead organic components and other 
  forms of sediment out of swimming pool water.
• Each grain of sand is approximately 0.45mm-
  0.55 mm insizeand filters around 20-40 microns.
• Can be used equally well for fresh water filtering 
  systems as it can for filtering systems used with 
  saltwater pools and it’s made in the U.S 
  according to strict standards.
How to use:
• Add the recommended amount of sand only.
  More is not better.