The Dual Gradient cartridge combines both a pre and post filter all in one.
The outer layers of the Dual Gradient cartridge have a larger 20 micron pre-filter that removes sediment and dirt.
The inner layers have a one micron fine filter to remove or reduce contaminants such as chemicals, chloroforms, algae as well as Giardia and Cryptosporidium cysts.
Systems consists of:
Single Jumbo 10 inch Casing
Duel Gradient sediment cartridge down to one micron for removal of dirt ,
sediment, Giardia and cryptosporidium.