My original water filter cartridge is a Flow Pur #CCI-10-Ca which I could not find locally and I checked with several RV dealers/suppliers.
I replaced with Hydro Life cartridge #C2471 which I purchased at the local Camping World. The Camping World item is #26383. The Hydro Life is made in the USA and is good to 10,000 gallons.
I did find some other filters that would fit for cheaper at another RV supply and at Camping World; however, the engineering specifications were different from the original Flow Pur. It was not important for me to stay with the original brand, but was important to me to stay with the original specifications; hence, that is why I went with the Hydro Life #C2471.
2012 Rockwood 8314BSS
Camping, Dutch Oven Cooking, and Homebrewing