FlexTrex® deionization units from Evoqua Water Technologies are ideal for polishing raw or RO permeate water. These skid-mounted ion exchange units are designed to treat flows ranging from 20 to 250 gpm per unit. FlexTrex units have quick disconnects and can be installed and placed in service quickly using flexible hoses. Regenerated off-site, these portable units do not use any hazardous chemicals and do not generate any wastewater.