Water Filter for the Frigidaire GLRS237ZCQ4 (WF2CB)

Your Frigidaire refrigerator takes the WF2CB 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

GLRS237ZCQ4 · Quick Facts

TYPE

refrigerator

YEARS MADE

—

FILTER LOCATION

behind the lower fresh-food trim or base grille in most side-by-side layouts

FILTER SLOT

PureSource 2 (WF2CB) bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

—

GLRS237ZCQ4 · Quick Facts

Filter locationbehind the lower fresh-food trim or base grille in most side-by-side layouts

Filter slotPureSource 2 (WF2CB) bay

Replace everyEvery 6 months

Typical installTwist or push — 5 minutes, no tools

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

✓

Verified fit for GLRS237ZCQ4. Cross-checked against Frigidaire service documentation — this model family uses the WF2CB bay with no chip or bypass restrictions.

Not your model? Check the finder →

GLRS237ZCQ4 specifics — where the filter actually lives

The filter bay on the GLRS237ZCQ4 behind the lower fresh-food trim or base grille in most side-by-side layouts, a spot that survives trim changes across the GLRS run. The seat is a twist-in design — offer the cartridge, feel the base o-ring register, and lock it by geometry rather than by force.

Order-day practicalities: carbon fines in the first pours are normal for a fresh bed, and the filter timer only restarts when you hold the reset. Prefix literacy pays here: GLRS generally indicates the side-by-side family, so cross-referencing cartridges by chassis rather than by door style usually keeps you out of the wrong-parts queue. Trailing letters like Q4 denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.

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

Same parts shelf, two cabinet missions — GLRS means side-by-side, the rest of the catalog means the neighboring layout. For filter shopping the distinction matters less than you would think — same line, different cabinet. Size class 23 cubic feet — worth knowing because a full household works a cartridge harder than the rated six months assumes.

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.

GLRS237ZCQ4 filter questions

Reset procedure for the change-filter alert on the GLRS237ZCQ4?

Hold the filter-reset control a few seconds after seating the new cartridge; placements vary by control panel, and the GLRS237ZCQ4 manual’s filter-status page has the exact spot.

Does the Frigidaire GLRS237ZCQ4 need a bypass plug when the filter is out?

Nothing to buy — the WF2CB housing closes without a cartridge; water runs unfiltered until the next one goes in.

Are off-brand filters safe for a Frigidaire 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 WF2CB 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 GLRS237ZCQ4?

Every six months or at the rated gallon capacity, whichever comes first — the WF2CB 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 WF2CB cartridge

This bay takes the OEM WF2CB. 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 →