Originally Posted By: SavagePatch
... Thanks! Any way to distinguish then when looking at a cartridge filter?
My Purolator "Classic" cartridge filters that I bought in late 2014 were made in Fayetteville in November 2012, according to the code. That code is difficult to read. It's in incredibly sloppy dot-matix printing in a slightly yellowish tinge on the edge of one end cap. Newer Purolators of the same model (L16311) are a completely different design, and may be from a different factory (or country?). However, the current PureOne version is constructed similar to my old "Classics," except with different media. (Incidentally, they're also absurdly overpriced at $18 at the local Advance.)