GE Osmonics RO controllers for systems producing less than 800 GPD. Designed as proprietary controllers for Osmonics WM800 RO systems, these units feature a two-line LCD display, 4-button operation, auto flush at shutdown, and change filter reminder. The process parameters measured are permeate and concentrate flow, TDS and permeate temperature. Controllers are rated for feed water flow from 66-132 GPH, permeate up tp 33 GPH, and concentrate from 33-99 GPH. Controllers are unused and in original packaging.