Waterpur Replacement Globe - 12"Product Description: The Forest River FR31 Water Pur Company CCI 10CLW12 Water Filter Canister is a 5 inch clear water filter housing with black o ring included. Replacement for the original water filter canister used in Forest River pop up travel trailers. Use this water filter housing with a Water Pur Company CCI 10Ca replacement filter, which is designed to fit the Water Pur Company CCI 10CLW12 filter housing. 1 2" female pipe thread x 1 2" female