Water Filter for the Samsung RS2578WW (DA29-00003G)

RS2578WW specifics — where the filter actually lives

Finding the bay is the easy part — this chassis puts it at the base of the fresh-food compartment in most side-by-side builds — grille or lower rear, so expect to clear one shelf edge before you have working room. It is a push-lock bay — the alignment is keyed, so it only goes in one way, and hand pressure is all the force required.

The recurring owner notes: the first removal takes more force than every later one, and skipping the reset leaves a change-light glaring at a perfectly fresh cartridge. Read the prefix and the maintenance writes itself: RS is Samsung’s own coding for side-by-side machines, and in that format the water path is long enough that a neglected cartridge shows up as flow drop before it shows up as taste. Trailing letters like WW denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.

RS vs RF — what the prefix tells you

The catalog pairs RS with RF, and the split matters at order time: RS covers side-by-side, while RF covers French-door multi-door. The cartridge line is usually shared across both — order by chassis, not by door count. 25 cu ft of cabinet — the dispenser sees heavy traffic at that size, and heavy traffic ages cartridges faster.

Swap it in 5 minutes

• Pull the old cartridge straight out of the header — expect a small spill, not a flood.
• Align the new cartridge with the keyed slot; it only goes in one orientation.
• Push the cartridge home until the retention latch clicks.
• Run two gallons through the dispenser to flush carbon fines, then hold the filter-reset control until the status light clears.

What this filter takes out of your water

Coverage above lists what the standard addresses, not a performance claim for any specific cartridge — removal claims vary by certificate, so check the NSF listing for the exact part number you are buying.

RS2578WW filter questions