AP141T Water Filters (made by American Filter Company (TM) Model # AFC-420 Comparable to 3M Aquapure (R) AP141T) Made in the U.S.A - 2 Filters. 3M Aquapure is a registered trademark of 3M Aquapure Company. 3M Aquapure is registered trademarks of their respective holders. American Filter Company and AmericanFilterCompany.com are not affiliated with 3M Aquapure.