... and where do I find them. I recently bought a house. The couple said they replaced the pump a couple years ago, but the filter is at least 5 years old. It is an old stainless steel filter with a cartridge/cartridges that are 6 skinny circles on the outside and one in the middle. I cleaned the cartridges. They seem to be okay and the pressure has been fine. What are these cartridges called and where would I find them? I've searched, but can't seem to find it. It wouldn't let me post the cartridge pic, so I linked it.
http://i562.photobucket.com/albums/ss66/fsujim/IMG_0942.jpg?t=1480715516
http://i562.photobucket.com/albums/ss66/fsujim/IMG_0942.jpg?t=1480715516
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