You stand at the appliance in your kitchen and hold an old puresource2 cartridge pulled from the front housing. The label on it says WF2CB water filter. Your water tastes off. Your filter light is on. You know you need a replacement. You look for the part number to order the correct item. You match the word on the label to the part in the store. That word tells you exactly what you need. You hold the Frigidaire WF2CB cartridge.

Water Filters FAST stocks the Frigidaire WF2CB PureSource2 Refrigerator Water Filter. Water Filters FAST lists it at $38.99 today. Three Frigidaire housings take three different cartridges. This post helps you verify your match. The physical check takes only five seconds.

Written by the Water Filters FAST filter experts. Reviewed by Phil McNamara, owner, Water Filters FAST. Updated September 2026.

What the puresource2 cartridge offers

The Frigidaire WF2CB Ice/Water Filtration System serves a specific purpose in your kitchen. It provides filtered water for your dispenser and ice maker. The cartridge uses a carbon block filter type. The carbon block filters the water before it reaches your cup. The frigidaire wf2cb cartridge delivers a steady output. The listing states a flow rate of 0.5 gallons per minute.

The appliance creates specific operating conditions. The cartridge handles an operating pressure between 30 and 100 psi. Your home plumbing supplies this pressure. The cartridge requires an operating temperature between 33 and 100 degrees Fahrenheit. The fresh food compartment sits inside that range. The WF2CB cartridge fits all PureSource 2 refrigerator models manufactured by Frigidaire.

The frigidaire puresource2 filter fits specific dimensions. The flat shape slides into a precise slot. The actual size is 6 3/4 inches in length. The cartridge is 5 1/4 inches in width. It measures 2 1/4 inches in height. These precise dimensions rule out round cylinders. You look for a slide-out filter cartridge located in the front of the refrigerator compartment.

The cartridge fits specific brands. It fits Frigidaire refrigerators built with the flat front housing. The cartridge also fits specific Electrolux and Kenmore models. The cartridge acts as the kenmore puresource2 replacement for Kenmore refrigerators built with the same housing.

The housing check separates three Frigidaire systems

You can confirm your refrigerator system with a physical inspection. Open the refrigerator door. Look closely at the front of the fresh food compartment. A flat slide-out drawer or cassette at the front of the compartment means you need the PureSource2. The correct cartridge is the flat block WF2CB. This visual check takes about five seconds.

Some refrigerators hold a different housing. Look for a round housing at the top right of the inner compartment. A slot that takes a cylinder means you need the PureSource 3 system. The correct cartridge is the Frigidaire WF3CB PureSource3 Refrigerator Water Filter. The WF3CB listing says NSF and ANSI certified it under Standards 42 and 53 for the reduction of the claims specified. You can read more about it in the WF3CB versus ULTRAWF guide.

Older refrigerators use a third style. Look for a round plastic housing on a refrigerator built before April 2001. This housing means you own the PureSourcePlus system. The correct cartridge is the Frigidaire WFCB and WF1CB PureSourcePlus Refrigerator Water Filter. If you still have doubts, check the Frigidaire water filter lookup post.

The label on the old cartridge overrules this table. You buy the exact part number printed on your existing cartridge.

What the three Frigidaire cartridges share

The three listings agree on the plumbing. Each cartridge takes an operating pressure of 30 to 100 psi. Each takes water between 33 and 100 degrees Fahrenheit. The WF2CB and the WF3CB both flow at 0.5 gallons per minute. A normal city supply or a well with a pressure tank sits inside those ranges.

The three listings differ on the clock. The WF2CB runs 9 months or 400 gallons. The WF3CB runs 6 months or 200 gallons. The WFCB runs 6 months or 400 gallons. The housing decides which cartridge you own, and the cartridge decides how often you order.

Nine months or 400 gallons on the clock

The listing states a firm replacement rule. The filter life is 9 months or 400 gallons. Replace the cartridge when whichever of those limits comes first. Your own daily use dictates which limit you hit.

A large household reaches the 400-gallon limit first. Five people drink plenty of water from the dispenser. The ice maker runs all summer. The gallons accumulate rapidly. The carbon block reaches its capacity before the calendar finishes nine months. The water might taste off. You replace the cartridge early based on the total volume used.

A small household uses less water. Two people might dispense only a few glasses a day. The ice maker runs rarely. The calendar reaches nine months first. You discard the old cartridge at nine months. You install a new cartridge to keep the system working properly. You follow the calendar limit.

How to replace the Frigidaire WF2CB

You can replace the puresource 2 water filter in a few minutes. You need no special tools. Follow these steps to complete the task.

1. Read the label on the old cartridge to confirm it says WF2CB.
2. Pull the slide-out cartridge straight out from the front housing.
3. Seat the new WF2CB firmly in the same housing until it stops.
4. Run the dispenser to flush the new carbon block and clear the line.
5. Write the date on the new cartridge to track your installation day.
6. Set a reminder nine months out on your calendar.
7. Reset the light per the instructions in the prior post about how to reset the water filter light.

Pack arithmetic for the WF2CB filter

Water Filters FAST keeps the Frigidaire WF2CB in stock today. The store offers four different quantities. You choose the pack size that fits your budget. You choose the pack size that fits your storage space.

A 1 Pack costs $38.99. You buy one single cartridge. This covers your refrigerator for the next nine months.

A 2 Pack costs $77.98. You get two cartridges in the shipment. The math works out to the same $38.99 for each cartridge. A two pack gives you an exact spare for the pantry.

A 3 Pack costs $113.97. The math brings the cost down to $37.99 for each cartridge. You save $3.00 against buying three single cartridges at $116.97. A three pack covers 27 months of filtered water at nine months each.

A 6 Pack costs $221.94. The math brings the cost down to $36.99 for each cartridge. You save $12.00 against buying six single cartridges at $233.94. Six cartridges cover four and a half years at nine months each.

Common questions about the PureSource2 filter

Is PureSource2 the same as WF2CB?

Yes. The system name printed on the refrigerator drawer is PureSource2. The Frigidaire part number for the replacement cartridge is WF2CB.

Does the WF2CB fit Kenmore and Electrolux?

Yes. The wf2cb water filter fits specific Frigidaire refrigerators. It also fits specific Electrolux and Kenmore refrigerators with a slide-out filter cartridge located in the front of the refrigerator compartment.

PureSource2 or PureSource 3, which one do I have?

Look at the fresh food compartment. A flat slide-out drawer at the front means you own the PureSource2 system. A round housing at the top right of the inner compartment means you own the PureSource 3 system.

How long does the WF2CB last?

The filter life for the WF2CB is 9 months or 400 gallons. You replace the cartridge when whichever limit comes first. A large household reaches 400 gallons first.

Where is the PureSource2 filter in the fridge?

The cartridge sits in a slide-out filter housing. You find this flat housing located in the front of the refrigerator compartment.

Is the WF2CB a Frigidaire part?

Yes. Water Filters FAST sells this item under the exact Frigidaire part number WF2CB.

Order your new WF2CB cartridge today

The Frigidaire WF2CB PureSource2 Refrigerator Water Filter is in stock today. Water Filters FAST lists it at $38.99 for a 1 Pack. You can choose a 2 Pack for $77.98. You can select a 3 Pack for $113.97. You can buy a 6 Pack for $221.94. You can also view the full Frigidaire refrigerator water filters collection to find other models.

Shipping is free over $75, and orders under that carry a $5 flat rate. A 30-day return policy and the Water Filters FAST satisfaction guarantee back every order. Call 855-789-FAST and the filter experts will confirm the match before you buy.