Sapporo SP-527-120V-C Gravity Feed Steam Iron, Water Bottle, Filters, Demineralizer, Hot Iron Rest, Teflon Shoe, 3 Prong Safety Plug on Power Cord

The bottom of the water bottle has a round mesh filter (in red color)to keep the demineralizer granules from passing through the water valve, hose, solenoid and iron steam chamber.