The Protegra OF reverse osmosis systems as frame version, cost effectively produce larger volumes of desalinated water. The compact systems were designed with high quality components and intelligent control. Applications include feedwater for glass washers, autoclaves, climate cabinets and ultrapure water systems. The Protegra OF reverse osmosis systems as frame version, cost effectively produce larger volumes of desalinated water. The compact systems were designed with high quality components and intelligent control. Applications include feedwater for glass washers, autoclaves, climate cabinets and ultrapure water systems.