Most refrigerators in the US have automatic ice cube making and water dispensing. At least ones in homes, rental properties tend to skimp on this unless they are labelled "luxury". Its connected to the water supply of the house, typically with a smaller diameter plastic hose.

There's a carbon filter inside the fridge, they cost about $50 to replace. For any drinking water I usually use the fridge.

Funny thought - what if we had filters on our computers, digital filters, that needed cleaning. Oh we kind of do! Its cookies and tracing pixels and digital footprints. You should clean those out too.