Cartridge code · Whirlpool and related brands
EDR4RXD1: everydrop Filter 4
Identical named standards to Filters 1 and 2, and a different seller count.
What the listing names
Named on the listing: NSF/ANSI 42, 53, 401.The listing names 42, 53 and 401. Three cells filled, and a contaminant count of 32 sitting outside all three of them.
Genuine listings
Sold as original parts by the appliance manufacturer or under its brand.
everydrop Filter 4, EDR4RXD1
The listing states NSF 42, 53 and 401 certification and reduction of 32 contaminants including 99% microplastics.
Named on the listing: NSF/ANSI 42, 53, 401.The listing names all three standard numbers, which is why all three cells are filled.
View the listing on AmazonThe Filter 4 cartridge names the same three standard numbers as Filters 1 and 2 but states 32 contaminants rather than 70. That is the clearest example on this site of two numbers moving independently: the certification is identical, the seller's contaminant count is not.
Suits A Whirlpool-family fridge that takes the EDR4RXD1 cartridge.
Aftermarket listings
No aftermarket listing in this catalog states compatibility with EDR4RXD1.
No aftermarket listing in this catalog states compatibility with EDR4RXD1. This site will not extend a compatibility statement from one cartridge code to another because the codes look similar.
Side by side
Only one listing in this catalog covers EDR4RXD1, so there is nothing to compare it against. A table of one row is a table pretending to be an argument.
Claims beyond the certification
- Reduction of 32 contaminants, against 70 on the Filter 1 and Filter 2 listings with the same named standards
- 99% microplastics, again not a claim under any standard named here
Codes the listings name
No refrigerator model is named on this listing, so none is named here. The cartridge code is the match.
How to check yours
- Pull the cartridge currently in the refrigerator and read the code molded or printed on its body, not the code on the box it came in.
- Find the same code in the refrigerator documentation, which lists the cartridge the appliance was designed for.
- Compare that code against the code on the listing you are about to buy, character for character, including any suffix.
- If a listing states it replaces your code, treat that as the seller's statement about their own product and check it against your documentation rather than instead of it.
- Keep the old cartridge until the new one is installed and running, so there is something to compare against if the fit is wrong.
Notes
This page is the best short argument on the whole site. Three cartridges, one family, identical named certification, and contaminant counts of 70, 70 and 32. If the count tracked the certification, that could not happen.
It does not follow that the Filter 4 is worse. It follows that the count and the certification are answering different questions, and only one of them was asked by a certifier.