The Hoshizaki, H9320-52, Twin Water Filter System is perfect for food service applications and ice machines. It's 4 gpm, nominal 1 micron rated, water filter works with single, double, and triple filtration systems. It will protect your ice machine and decrease maintenance by reducing sediment, lime scale buildup, and more. The 4HC-H filter replaces the discontinued HC-F and HC-H filters. This filter is shorter in length than the previous HC and HC-H filters. Not recommended for use with flakers. 
The 4HC-H filter(s) reduces up to 93.7% of disinfectant chlorine for better tasting water and ice.  Replace approximately every 42,000 gallons or 6-12 Months depending on usage and water condition. NSF Standard 42.