Look on the cartridge and appliance label
A fridge-filter part number is normally printed on the removable cartridge and may also appear in the refrigerator owner's manual. Photograph the installed filter before disposal so you can preserve its family name, OEM number, and installation direction.
Do not confuse the filter number with the refrigerator model or serial number. All three may contain similar strings of letters and numbers but identify different things.
Older numbers may lead to a current replacement
Manufacturers sometimes replace an older cartridge number with a newer retail part. For example, Whirlpool identifies EDR1RXD1 as the current EveryDrop Filter 1 replacement for W10295370A, EDR2RXD1 as replacing P9WB2L, and EDR4RXD1 as replacing UKF8001.
A cross-reference is useful search information, but it does not override the appliance model. Confirm the current replacement on the manufacturer's site before purchasing.
Search in the right order
Start with the exact refrigerator model, confirm the current OEM filter, and then use any legacy part number to compare listings. A product that names only the appliance brand or looks similar is not a verified match.
- Search: brand + refrigerator model + water filter
- Confirm: current OEM part number
- Cross-check: older or alternate part number
- Inspect: connector and locking features
- Buy only after all references agree
Manufacturer and standards sources
Compatibility and instructions can change. Use these primary sources and your refrigerator manual for final confirmation.
Whirlpool EveryDrop Filter 1 specifications ↗Whirlpool EveryDrop Filter 4 specifications ↗