everydrop Filter 1 vs 2 (and 3, 4): Which One Fits Your Fridge

everydrop Filters 1, 2, 3 and 4 are four different filters, and they do not swap. Buy the number printed on your old filter. If you cannot read it, the table shows where each one sits in the fridge.

By Erin Rose · Certifications checked October 23, 2026 · How we check

Amazon prices as of November 12, 2026 at 12:18 PM ET. Prices can change; the price on Amazon is the one that counts.

Filter 1, 2, 3 and 4 side by side

Filter	Also on the label	Where it sits	Certified for	Change every	Price today
everydrop Filter 1 EDR1RXD1	W10295370A, W10295370, WHR1RXD1, KAD1RXD1	Top right corner inside the fridge section. In a side-by-side, it can also be in the bottom grille under the freezer door. Slides straight out.	Lead and cysts, traces of medicines Lead: yes · Mercury: no · PFAS: no	6 months 200 gallons	$54.00	Buy everydrop Filter 1 Cheaper certified copy: see the Filter 1 page
everydrop Filter 2 EDR2RXD1	W10413645A, WHR2RXD1, KAD2RXD1, W10790814	French-door fridges: top right corner or bottom left corner of the fridge section. Twists out (turn left).	Lead and cysts, traces of medicines Lead: yes · Mercury: no (yes on the Whirlpool and KitchenAid labels) · PFAS: no	6 months 200 gallons	$49.99	Buy everydrop Filter 2 No copy is certified: see the Filter 2 page
everydrop Filter 3 EDR3RXD1	WHR3RXD1, KAD3RXD1, W10790816, 4396841, 4396710	Bottom grille of a side-by-side fridge, below the freezer door. Push the eject button, then pull it out.	Lead and cysts, PFOA/PFOS, traces of medicines Lead: yes · Mercury: yes · PFAS: yes	6 months 200 gallons	$49.99	Buy everydrop Filter 3 Cheaper certified copy: see the Filter 3 page
everydrop Filter 4 EDR4RXD1	UKF8001, WHR4RXD1, KAD4XD1	French-door fridges: top right corner of the fridge section. Twists out (turn left).	Lead and cysts, traces of medicines Lead: yes · Mercury: yes · PFAS: no	6 months 200 gallons	$57.00	Buy everydrop Filter 4 Cheaper certified copy: see the Filter 4 page

"Certified for" is what NSF lists for each filter's own part number. Price is for one filter. Prices as of November 12, 2026 at 12:18 PM ET.

How to tell which one you have

Read the number on your old filter. It says EDR1RXD1, EDR2RXD1, EDR3RXD1 or EDR4RXD1, or "Filter 1" to "Filter 4". That is the one to buy.
Check the other labels. Whirlpool (WHR) and KitchenAid (KAD) put their own codes on the same filter. WHR2RXD1 and KAD2RXD1 are Filter 2. WHR3RXD1 and KAD3RXD1 are Filter 3. Maytag UKF8001 is Filter 4.
Look at where it sits. A filter in the bottom grille under the freezer door is Filter 3, or sometimes Filter 1. A filter in the top right corner inside the fridge is Filter 1, 2 or 4, so check the number too.
Check how it comes out. It slides straight out for Filter 1. It twists out for Filter 2 and Filter 4. It has an eject button for Filter 3.
Still not sure? Look up your fridge's model number in the owner's manual, or use the finder on our fridge filter page.

Questions people ask

Is everydrop Filter 1 the same as Filter 2?

No. They are different filters for different fridges, and one will not fit where the other goes. Filter 1 slides straight out of its housing. Filter 2 twists out. Match the number on your old filter: EDR1RXD1 is Filter 1, EDR2RXD1 is Filter 2.

Can I use Filter 4 instead of Filter 1?

No. Filters 1 and 4 can both sit in the top right corner of the fridge, but they are different filters. Filter 1 slides out and Filter 4 twists out. Buy the number on your old filter. Maytag UKF8001 is Filter 4.

What is the difference between Filter 1 and Filter 3?

Filter 3 sits in the bottom grille of a side-by-side fridge and has an eject button. Filter 1 is usually in the top right corner of the fridge section, though some side-by-sides have it in the grille too. Buy the number on your old filter.

Which everydrop filter removes PFAS?

Only Filter 3 is listed for PFOA and PFOS (NSF/ANSI 53). Filter 1, Filter 2 and Filter 4 are not. Your fridge decides which number you can use, so check the number on your old filter first.

How often should I change an everydrop filter?

Every 6 months for all four, Whirlpool says. NSF lists each for 200 gallons. That is 2 filters a year.

Sources

NSF certified product listings for NSF/ANSI 42, 53 and 401: listings.nsf.org, read October 23, 2026. Each filter's own page names the listing.
Where each filter sits and how it comes out: Sears PartsDirect, how to change the water filter in a Whirlpool refrigerator, read October 28, 2026.
Amazon listings and prices: read through Amazon's product API. We show a price only if we read it in the last 24 hours.