The Water Filter Cartridges by Hoshizaki: Pre-FilterReplacementCartridge, EC...The Water Filter Cartridges by Hoshizaki: Pre-Filter Replacement Cartridge, EC110 (12 pack) ( Hoshizaki - 9534-12 ) - The Hoshizaki 9534-12 replacement pre-filter cartridge is made to be placed in a filter assembly. It removes large rust and dirt...more