If you ever need to order any Pur water filter parts, order them from Pur not a dealer. I ordered a CCI-10-CLW Forest River Water Filter Housing and paying almost $20 more doing the wrong thing.
It is not a good idea to trap bacteria in a filter on a camper. Because we typically disconnect our water source for a period of time between trips, the bacteria will grow in the warm moist material inside the filter. For camping I wouldn’t get too concerned about the micron rating. 30 to 100 is fine. The lower micron filters will reduce flow, pressure and plug easily. I believe a good carbon filter for taste and odor is more practical.
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Ohio
2016 Cedar Creek 36ckts
2015 Ford F-350
4WD SRW Diesel