Replace Filters Case 8 : 10″ Double Transparent Housing Fiber & Cto Replacement filters servicing for 10″ Double Transparent Housing. Prepare to replace 10″ Ecotech 01 micron Fiber Filter & 10″ Olsmopure Cto filter. Discarded the old filters. Changed done. Replace Filters Case 9 : Freshpure ECO 5 Stages Energy Life Water Filters System Rental Servicing Case 7 : Plan20 4th Services for Ecotech B101 Hot Warm Water Dispenser