# Whirlpool refrigerator water filter

> Whirlpool fridge filters use EveryDrop cartridges keyed by model. See how to find the right number, what certification means, and when to change it.

Canonical: https://watertreatmentpro.com/whirlpool-refrigerator-water-filter/

Last updated: 2026-11-09

Whirlpool refrigerators use EveryDrop cartridges, labelled Filter 1 through Filter 4 depending on the model. They cost $40 to $70, last about six months, and are not interchangeable between numbers. The old cartridge's label is the fastest way to buy the right one.

## The EveryDrop Numbering

| Filter | Fits | Notes |
|---|---|---|
| Filter 1 | Many side-by-side models | Common |
| Filter 2 | French-door models | Different housing |
| Filter 3 | Some French-door and column models | Less common |
| Filter 4 | Select newer models | Check the number carefully |

The numbering is a Whirlpool convention, not a size code. Two fridges from the same product line in different years can take different numbers, which is why the model plate matters as much as the brand.

A cartridge that looks right but will not lock is usually the wrong number rather than a defective part. Compare the keying tabs on the old and new cartridges side by side; the difference is usually a few millimetres in an area you would not notice on a shelf photo.

## Finding the Right Cartridge

1. **Pull the old cartridge** and read the number on the label.
2. **Check the fridge label**, usually inside the door or on the frame.
3. **Use the model plate**, inside the fresh food compartment, with Whirlpool's filter finder.

If the old cartridge is missing, the fridge label is the next best source. If that is gone too, the model number is the only reliable route.

## What the Filter Removes

EveryDrop cartridges are carbon blocks. Certification varies by number.

| Contaminant | Standard | Certified versions |
|---|---|---|
| Chlorine | Yes | Yes |
| Taste and odour | Yes | Yes |
| Sediment | Nominal | Yes |
| Lead | No | Some |
| Cysts | No | Some |
| Pharmaceuticals | No | Some |
| Nitrate | No | No |
| Hardness | No | No |

The last two rows define the limit. A fridge filter is not a softener and not a reverse osmosis system. If the lab report shows hardness or nitrate, the dispenser is not where that gets solved.

## Cost and Frequency

At $45 to $70 per cartridge and two changes a year, the annual cost is $90 to $140. At 200 gallons per cartridge, cost per gallon is $0.22 to $0.35, which is among the highest of any home filter format.

| Option | Cost per gallon |
|---|---|
| Whirlpool EveryDrop | $0.22 - $0.35 |
| Certified third party | $0.12 - $0.20 |
| Under-sink carbon | $0.02 - $0.08 |
| Bottled water | $0.50 - $2.00 |

The premium is for the keyed housing and the brand. A certified third-party cartridge is a legitimate way to cut the cost if it lists your model.

Pricing moves with promotions and multi-packs. A two-pack bought on sale can bring the per-cartridge cost near $35, which is close to a certified third-party unit. The subscription model is worth checking too: Whirlpool and several retailers sell automatic shipments at a discount. The savings are modest, and the real value is that the cartridge arrives before the light comes on rather than after the water starts tasting of chlorine.

## Why Certification Matters More Than Brand

A cartridge that fits but is not certified may allow water to bypass the media internally. The dispenser still runs, the water still tastes fine, and the filter is doing nothing.

Certification is the only check. Look for the NSF mark with the standard number and the specific model, not a claim like "meets NSF standards" in the marketing copy.

## Five Steps to Replace

1. **Locate the housing**, usually in the top right of the fridge interior or in the base grille.
2. **Twist the old cartridge** a quarter turn and pull, or press the release latch.
3. **Remove the cap** from the new cartridge and seat it fully.
4. **Flush 2 to 3 gallons** through the dispenser to clear air and carbon fines.
5. **Reset the indicator** by holding the filter button until the light changes.

## Troubleshooting

**Slow dispenser after a change.** Air in the line. Flush longer.

**Leak at the housing.** The cartridge is not fully seated or the O-ring is damaged.

**Water tastes flat.** Carbon fines. Flush another gallon.

**Indicator stays on.** Some models reset through a menu rather than a button hold.

**Cartridge will not seat.** Wrong number, even if the box said it fit. Compare the old and new side by side, and check the keying tabs rather than the overall shape.

A dispenser that runs but tastes of chlorine after a change usually means the cartridge is bypassing internally, which happens with an uncertified part or one that is not fully locked. Turn it another quarter turn and flush again before assuming the cartridge is defective.

## When to Bypass

If the fridge is fed from a whole-house carbon filter or an under-sink RO, the EveryDrop cartridge is treating already-treated water. Whirlpool fridges accept a bypass plug, which saves $90 to $140 a year.

The condition is that the upstream treatment actually removes chlorine. A sediment-only whole-house filter does not, so the fridge cartridge is still doing work in that case.

A third case matters too: a household that uses the dispenser mainly for ice. Ice concentrates whatever is in the water, including chlorine byproducts, so the cartridge is doing more for ice than for a glass of water. Bypassing it because the drinking water comes from elsewhere would degrade the ice.

For the broader format comparison, see [filter refrigerator water filter](https://watertreatmentpro.com/filter-refrigerator-water-filter/). For the GE equivalent, [General Electric water filter for fridge](https://watertreatmentpro.com/general-electric-water-filter-for-fridge/) covers that cartridge family, and [under sink water filter](https://watertreatmentpro.com/under-sink-water-filter/) covers the lower cost per gallon option.