VNX-CDIT modules are unlike any other within the VNX family. These modules can tolerate up to 4 ppm feedwater hardness as CaCO3, up to 2 ppm feedwater silica as SiO2, and up to 100 μS/cm feedwater conductivity equivalent (FCE). To put it simply, these modules are optimized to provide high-purity water typically from a single-pass reverse osmosis (RO) feedwater supply with up to 90% recovery. Other modules, like the VNX-55, are limited to 1 ppm feedwater hardness, 1 ppm feedwater silica, and 40 μS/cm FCE.

• 4 ppm as CaCO3 max feed water hardness
• 2 ppm as SiO2 max feed water silica
• Expanded CO2 removal capabilities
• In most cases can operate on single pass RO permeate
• Thin cell technology optimized for feed water hardness tolerance
• No need for acid/caustic, neutralization systems or tank exchanges
• Junction box for convenient and safe power connections
• Available as 30 gpm (6.8 m³/h) or 15 gpm (3.4 m³/h) nominal flow rates

• Product Flow, minimum gpm (m³/h): 7.5 (1.7)
• ​Product Flow, nominal gpm (m³/h)​: 15 (3.4)
• ​Product Flow, nominal gpm (m³/h)​: 22.5 (5.1)

• Product Flow, minimum gpm (m³/h): 15 (3.4)
• ​Product Flow, nominal gpm (m³/h)​: 30 (6.8)
• ​Product Flow, nominal gpm (m³/h)​: 45 (10.2)