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Water Filter for the KitchenAid KSSC42FTS03 (EDR3RXD1)
✓ 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:
✓
KSSC42FTS03 specifics — where the filter actually lives
Finding the bay is the easy part — this chassis puts it bottom of the fresh-food column or at the grille line in most side-by-side builds, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a quarter-turn twist-in seat: the bay wants the cartridge offered flat, rotated a quarter turn, and nothing more — hand pressure only.
Field notes: a stubborn first twist when the old o-ring has set, and a change-filter light that will not clear itself until you hold the reset. Decode the plate and the parts question answers itself: it usually marks a side-by-side layout, which means shared cartridge economics — one media family, dozens of cabinet variants, all drinking from the same parts line. That trailing 03 is the revision counter: KSS chassis revisions share one water path, so the cartridge order never changes with it.
KSS vs the rest of the catalog — what the prefix tells you
The KSS/the rest of the catalog pair divides this family by layout — split by cabinet mission (side-by-side versus the neighboring layout), joined by cartridge line — that is the KSS/the rest of the catalog story. Model-code reading puts the KSSC42FTS03 at roughly 2007 to 2011 — treat that as approximately right, not a production guarantee.
Swap it in 5 minutes
- Twist the old cartridge a quarter turn counterclockwise and pull it straight down — keep a towel in reach for the dribble.
- Fill the new cartridge with cold tap water so the chamber is not fighting an air pocket.
- Offer the new cartridge to the bay, push up, and twist a quarter turn clockwise until the stop catches.
- 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.
KSSC42FTS03 filter questions
How to reset the water filter indicator: KitchenAid KSSC42FTS03?
With the new cartridge seated, press and hold the filter reset until the light clears — panel placement differs, so the KSSC42FTS03 manual’s filter section has the exact control for your trim.
Is a bypass plug required for the KSSC42FTS03 when the cartridge is removed?
Nothing to buy — the EDR3RXD1 housing closes without a cartridge; water runs unfiltered until the next one goes in.
Are off-brand filters safe for a KitchenAid 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 EDR3RXD1 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 KSSC42FTS03?
Every six months or at the rated gallon capacity, whichever comes first — the EDR3RXD1 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
| Cartridge | OEM EDR3RXD1 | RECOMMENDEDEDR3RXD1 Replacement Water Filter · 1-Pack – ClearFit | EDR3RXD1 Replacement Water Filter · 3-Pack – ClearFit | EDR3RXD1 Replacement Water Filter · 6-Pack – ClearFit |
|---|---|---|---|---|
| Price | OEM list | $17.99 | $44.97 | $80.94 |
| Verified fit | ✓ the bay cartridge | View & buy → | View & buy → | View & buy → |
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
Related guides
POPULAR GUIDE
How to change a Whirlpool refrigerator water filter
Every Filter 1–6 bay location — including the door-mounted bays on WRX models, with door-open angles and cap-release quirks. — read the guide →
POPULAR GUIDE
How to reset your Whirlpool filter light
Filter 1–6 indicator maps showing which key actually clears the light on your panel. — read the guide →
WATER PROBLEM GUIDE
Does your fridge filter remove fluoride?
What EDR1RXD1-class carbon blocks actually take out — and the systems that do remove fluoride. — read the guide →