The Hoshizaki, 9795-90, E-20 Prefilter System is perfect for food service applications and ice machines. This 6 gpm, 10 micron rated, is Ideal for twin & triple configuration water filter systems in high sediment areas. Filters out larger dirt and rust particles. 
The EC210 Prefilter extends the life of the primary water filter cartridges.  Replace approximately every 15,000 gallons or 6-12 Months depending on usage and water condition. NSF Standard 42.