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Water Filter for the LG RWF1200AH (LT700P)
✓ 100% compatible — no bypass plug needed
🔧 5-min push-in swap
🇺🇸 Ships from Indiana
Every cartridge that fits this model — pulled live from the catalogue:
✓
RWF1200AH specifics — where the filter actually lives
Where the filter actually lives: in the fresh-food compartment — exact spot varies by dispenser layout, a deliberate placement that keeps the swap away from the door seals and drawer rails. This is a push-twist style bay: two motions and a flush — the entire service procedure for this bay design.
Order-day practicalities: the line is still live when you open the bay, so keep a towel in reach, and expect the filter-status light to need a reset before it believes the new cartridge. Whatever the badge on the door says, the parts reality is the LT700P media line; that is the anchor every compatible listing hangs from. Trailing letters like AH denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.
Reading the RWF1200AH model code — what the digits tell you
The two digits after the letters are the cabinet size: this is a 12 cubic feet refrigerator, which sets how much dispenser work the cartridge does between changes. What stays constant across the trim range: whatever the door count, the cartridge answer for this chassis is the LT700P family.
Swap it in 5 minutes
- Press the release (if fitted), twist the old cartridge free, and pull it from the header.
- Wet the new cartridge’s o-ring with cold tap water so it seats without dragging.
- Push the cartridge square onto the header, then give it the locking quarter turn.
- 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
| What it targets | Standard that covers it |
|---|---|
| Chlorine taste & odor | NSF/ANSI 42 — aesthetic effects |
| Particulates, Class I | NSF/ANSI 42 — fine sediment |
| Lead | NSF/ANSI 53 — health effects |
| Cysts (cryptosporidium, giardia) | NSF/ANSI 53 — microbial |
| PFOA & PFOS | NSF/ANSI 53 (P473) — varies by cartridge |
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.
RWF1200AH filter questions
Reset procedure for the change-filter alert on the RWF1200AH?
Lock in the new cartridge first, then hold the reset control for a few seconds — the RWF1200AH manual documents the button for each panel variant.
Does the LG RWF1200AH need a bypass plug when the filter is out?
The bay self-seals: with no cartridge the RWF1200AH still dispenses, just unfiltered. No bypass plug exists for this line.
Are off-brand filters safe for a LG refrigerator?
Certified aftermarket cartridges are built to the same NSF test standards as the OEM part, and federal warranty law (Magnuson-Moss) protects your coverage when you use them.
Why is the OEM LT700P cartridge so much more expensive?
Part of the OEM price is the badge and the distribution chain. Certified alternatives meet the same test standards at a lower unit price, especially in multi-packs.
How often should I replace the filter in my RWF1200AH?
Every six months or at the rated gallon capacity, whichever comes first — the LT700P class cartridges all share that service interval.
Do I need to turn off the water supply to change it?
No — the bay is designed for a live swap. Expect a small dribble, keep a towel in reach, and flush a couple of gallons through the new cartridge before the first glass.
Every filter that fits your fridge
This bay takes the OEM LT700P. ClearFit verified-fit alternatives for this exact slot are being staged — every compatible option for your fridge is one lookup away.
Check every filter that fits →This filter expires six months from today
Your HVAC filter is probably on a different cycle. Track them all in one place.
months until this filter should be replaced (200-gal rated life)
Free tool · tracks fridge + HVAC + whole-house · auto-refill optional
More models using this filter
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