Water Filter for the KitchenAid KSSC42FTS20 (EDR3RXD1)

Your Whirlpool refrigerator takes the EDR3RXD1 slot. Below is every filter that fits — OEM and certified alternatives — with real prices.

✓ 100% compatible — no bypass plug needed

🔧 5-min push-in swap

🇺🇸 Ships from Indiana

KSSC42FTS20 · Quick Facts

TYPE

refrigerator

YEARS MADE

2007-2011

FILTER LOCATION

low on the fresh-food side or behind the base grille in most side-by-side layouts

FILTER SLOT

EveryDrop Filter 3 bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

kssc42fts03, kssc42fts15

KSSC42FTS20 · Quick Facts

Filter locationlow on the fresh-food side or behind the base grille in most side-by-side layouts

Filter slotEveryDrop Filter 3 bay

Replace everyEvery 6 months

Years made2007-2011

Also branded askssc42fts03, kssc42fts15

Typical installTwist or push — 5 minutes, no tools

Every cartridge that fits this model — pulled live from the catalogue:

✓

Verified fit for KSSC42FTS20. Cross-checked against Whirlpool service documentation — this model family uses the EDR3RXD1 bay with no chip or bypass restrictions.

Not your model? Check the finder →

KSSC42FTS20 specifics — where the filter actually lives

On the KSSC42FTS20, the cartridge low on the fresh-food side or behind the base grille in most side-by-side layouts, the same estate every side-by-side refrigerator in this family uses. Mechanically it is a quarter-turn twist-in seat: seat the cartridge against the o-ring, quarter-turn clockwise, and let the keyed flange do the aligning for you.

Two quirks worth knowing before you order: the reset control is the step everyone skips; the light will not acknowledge a new cartridge on its own. 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. A -20 style suffix means running production revisions; filter fit stayed constant across the whole run.

KSS vs the rest of the catalog — what the prefix tells you

Catalog shorthand: side-by-side on the KSS side, the neighboring layout on the rest of the catalog side — the parts catalog runs the same cartridge across both. The KSSC42FTS20 decodes to about 2007-2011 by catalog convention — close enough to bracket the cartridge generation, not close enough to certify.

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.

KSSC42FTS20 filter questions

How do I reset the filter light on the KitchenAid KSSC42FTS20?

Press and hold the reset control until the light clears (a few seconds), with the new cartridge already seated — the KSSC42FTS20 owner’s manual lists the button location for your control panel.

Can I run the KitchenAid KSSC42FTS20 with no cartridge installed?

No — the EDR3RXD1 bay seals on the cartridge itself, so removing it just means unfiltered water until the next change, not a leak.

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 KSSC42FTS20?

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

OEM EDR3RXD1 cartridge

This bay takes the OEM EDR3RXD1. 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 →