2023 Bulletin - ESD2752R39 Software December 05, 2023 22:14 Updated Click on the document below to open: ESD2752R39 Software Bulletin.pdf 100 KB Download Related articles Model/Part Number Reference Chart Softener/Refiner Warranty Chart - Residential 1" Valve Softener/Filter Manual EcoWater Water Treatment System Product Insert (QR Code) 2023 Bulletin - New High Recovery Flow Restrictor for the 385 RO's