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Water Filter for the LG LSC27935ST (LT600P)
✓ 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:
✓
LSC27935ST specifics — where the filter actually lives
Finding the bay is the easy part — this chassis puts it low on the fresh-food side or behind the base grille in most side-by-side layouts, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically the LSC27935ST uses a push-and-twist cartridge: press, quarter-turn, finished — the two-step seat keeps the o-ring from dragging on installation.
Order-day practicalities: flush before the first glass — new carbon beds shed fines for the first gallon or so, which is cosmetic, not contamination. The LS in LSC27935ST is doing real work: LG uses it across the side-by-side range, which means shared cartridge economics — one media family, dozens of cabinet variants, all drinking from the same parts catalog. The ST ending is a finish code — color and handle options, not mechanical ones. Every finish of this chassis takes the same cartridge.
LS vs LF — what the prefix tells you
Prefix families here: LS against LF. side-by-side against French-door, respectively. Filter bays rarely care — the media family carries over more often than not. The digits in the model number read as cabinet capacity (27 cu ft), a decent proxy for how hard the filter works in daily service.
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.
LSC27935ST filter questions
Clearing the filter status light on a LG LSC27935ST?
Hold the filter-reset control a few seconds after seating the new cartridge; placements vary by control panel, and the LSC27935ST manual’s filter-status page has the exact spot.
Does the LG LSC27935ST need a bypass plug when the filter is out?
No cap needed — the LT600P bay passes water unfiltered while empty; it does not leak, it just skips filtration.
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 LT600P 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 LSC27935ST?
Every six months or at the rated gallon capacity, whichever comes first — the LT600P 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 LT600P. 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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